21529560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 128

約数和(自身を含む): 71628480

約数和(自身を除く): 50098920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 37, 39, 40, 52, 60, 65, 74, 78, 104, 111, 120, 130, 148, 156, 185, 195, 222, 260, 296, 312, 370, 373, 390, 444, 481, 520, 555, 740, 746, 780, 888, 962, 1110, 1119, 1443, 1480, 1492, 1560, 1865, 1924, 2220, 2238, 2405, 2886, 2984, 3730, 3848, 4440, 4476, 4810, 4849, 5595, 5772, 7215, 7460, 8952, 9620, 9698, 11190, 11544, 13801, 14430, 14547, 14920, 19240, 19396, 22380, 24245, 27602, 28860, 29094, 38792, 41403, 44760, 48490, 55204, 57720, 58188, 69005, 72735, 82806, 96980, 110408, 116376, 138010, 145470, 165612, 179413, 193960, 207015, 276020, 290940, 331224, 358826, 414030, 538239, 552040, 581880, 717652, 828060, 897065, 1076478, 1435304, 1656120, 1794130, 2152956, 2691195, 3588260, 4305912, 5382390, 7176520, 10764780, 21529560]

約数ペア:

[(1, 21529560), (2, 10764780), (3, 7176520), (4, 5382390), (5, 4305912), (6, 3588260), (8, 2691195), (10, 2152956), (12, 1794130), (13, 1656120), (15, 1435304), (20, 1076478), (24, 897065), (26, 828060), (30, 717652), (37, 581880), (39, 552040), (40, 538239), (52, 414030), (60, 358826), (65, 331224), (74, 290940), (78, 276020), (104, 207015), (111, 193960), (120, 179413), (130, 165612), (148, 145470), (156, 138010), (185, 116376), (195, 110408), (222, 96980), (260, 82806), (296, 72735), (312, 69005), (370, 58188), (373, 57720), (390, 55204), (444, 48490), (481, 44760), (520, 41403), (555, 38792), (740, 29094), (746, 28860), (780, 27602), (888, 24245), (962, 22380), (1110, 19396), (1119, 19240), (1443, 14920), (1480, 14547), (1492, 14430), (1560, 13801), (1865, 11544), (1924, 11190), (2220, 9698), (2238, 9620), (2405, 8952), (2886, 7460), (2984, 7215), (3730, 5772), (3848, 5595), (4440, 4849), (4476, 4810)]