21225360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6803}}^1$

素因数の和:6832

約数の個数: 80

約数和(自身を含む): 70870464

約数和(自身を除く): 49645104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6803, 13606, 20409, 27212, 34015, 40818, 54424, 68030, 81636, 88439, 102045, 108848, 136060, 163272, 176878, 204090, 265317, 272120, 326544, 353756, 408180, 442195, 530634, 544240, 707512, 816360, 884390, 1061268, 1326585, 1415024, 1632720, 1768780, 2122536, 2653170, 3537560, 4245072, 5306340, 7075120, 10612680, 21225360]

約数ペア:

[(1, 21225360), (2, 10612680), (3, 7075120), (4, 5306340), (5, 4245072), (6, 3537560), (8, 2653170), (10, 2122536), (12, 1768780), (13, 1632720), (15, 1415024), (16, 1326585), (20, 1061268), (24, 884390), (26, 816360), (30, 707512), (39, 544240), (40, 530634), (48, 442195), (52, 408180), (60, 353756), (65, 326544), (78, 272120), (80, 265317), (104, 204090), (120, 176878), (130, 163272), (156, 136060), (195, 108848), (208, 102045), (240, 88439), (260, 81636), (312, 68030), (390, 54424), (520, 40818), (624, 34015), (780, 27212), (1040, 20409), (1560, 13606), (3120, 6803)]