21576310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 46854144

約数和(自身を除く): 25277834

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 61, 62, 70, 122, 155, 163, 217, 305, 310, 326, 427, 434, 610, 815, 854, 1085, 1141, 1630, 1891, 2135, 2170, 2282, 3782, 4270, 5053, 5705, 9455, 9943, 10106, 11410, 13237, 18910, 19886, 25265, 26474, 35371, 49715, 50530, 66185, 69601, 70742, 99430, 132370, 139202, 176855, 308233, 348005, 353710, 616466, 696010, 1541165, 2157631, 3082330, 4315262, 10788155, 21576310]

約数ペア:

[(1, 21576310), (2, 10788155), (5, 4315262), (7, 3082330), (10, 2157631), (14, 1541165), (31, 696010), (35, 616466), (61, 353710), (62, 348005), (70, 308233), (122, 176855), (155, 139202), (163, 132370), (217, 99430), (305, 70742), (310, 69601), (326, 66185), (427, 50530), (434, 49715), (610, 35371), (815, 26474), (854, 25265), (1085, 19886), (1141, 18910), (1630, 13237), (1891, 11410), (2135, 10106), (2170, 9943), (2282, 9455), (3782, 5705), (4270, 5053)]