21257512464

素因数分解:

$2^4\times 3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1\times {\mathrm{337}}^1$

素因数の和:725

約数の個数: 160

約数和(自身を含む): 56780365824

約数和(自身を除く): 35522853360

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 71, 83, 142, 166, 213, 223, 249, 284, 332, 337, 426, 446, 498, 568, 664, 669, 674, 852, 892, 996, 1011, 1136, 1328, 1338, 1348, 1704, 1784, 1992, 2022, 2676, 2696, 3408, 3568, 3984, 4044, 5352, 5392, 5893, 8088, 10704, 11786, 15833, 16176, 17679, 18509, 23572, 23927, 27971, 31666, 35358, 37018, 47144, 47499, 47854, 55527, 55942, 63332, 70716, 71781, 74036, 75151, 83913, 94288, 94998, 95708, 111054, 111884, 126664, 141432, 143562, 148072, 150302, 167826, 189996, 191416, 222108, 223768, 225453, 253328, 282864, 287124, 296144, 300604, 335652, 379992, 382832, 444216, 447536, 450906, 574248, 601208, 671304, 759984, 888432, 901812, 1148496, 1202416, 1314139, 1342608, 1803624, 1985941, 2628278, 3607248, 3942417, 3971882, 5256556, 5335721, 5957823, 6237533, 7884834, 7943764, 10513112, 10671442, 11915646, 12475066, 15769668, 15887528, 16007163, 18712599, 21026224, 21342884, 23831292, 24950132, 31539336, 31775056, 32014326, 37425198, 42685768, 47662584, 49900264, 63078672, 64028652, 74850396, 85371536, 95325168, 99800528, 128057304, 149700792, 256114608, 299401584, 442864843, 885729686, 1328594529, 1771459372, 2657189058, 3542918744, 5314378116, 7085837488, 10628756232, 21257512464]

約数ペア:

[(1, 21257512464), (2, 10628756232), (3, 7085837488), (4, 5314378116), (6, 3542918744), (8, 2657189058), (12, 1771459372), (16, 1328594529), (24, 885729686), (48, 442864843), (71, 299401584), (83, 256114608), (142, 149700792), (166, 128057304), (213, 99800528), (223, 95325168), (249, 85371536), (284, 74850396), (332, 64028652), (337, 63078672), (426, 49900264), (446, 47662584), (498, 42685768), (568, 37425198), (664, 32014326), (669, 31775056), (674, 31539336), (852, 24950132), (892, 23831292), (996, 21342884), (1011, 21026224), (1136, 18712599), (1328, 16007163), (1338, 15887528), (1348, 15769668), (1704, 12475066), (1784, 11915646), (1992, 10671442), (2022, 10513112), (2676, 7943764), (2696, 7884834), (3408, 6237533), (3568, 5957823), (3984, 5335721), (4044, 5256556), (5352, 3971882), (5392, 3942417), (5893, 3607248), (8088, 2628278), (10704, 1985941), (11786, 1803624), (15833, 1342608), (16176, 1314139), (17679, 1202416), (18509, 1148496), (23572, 901812), (23927, 888432), (27971, 759984), (31666, 671304), (35358, 601208), (37018, 574248), (47144, 450906), (47499, 447536), (47854, 444216), (55527, 382832), (55942, 379992), (63332, 335652), (70716, 300604), (71781, 296144), (74036, 287124), (75151, 282864), (83913, 253328), (94288, 225453), (94998, 223768), (95708, 222108), (111054, 191416), (111884, 189996), (126664, 167826), (141432, 150302), (143562, 148072)]