21831420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2153}}^1$

素因数の和:2191

約数の個数: 72

約数和(自身を含む): 66222576

約数和(自身を除く): 44391156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2153, 2535, 3380, 4306, 5070, 6459, 8612, 10140, 10765, 12918, 21530, 25836, 27989, 32295, 43060, 55978, 64590, 83967, 111956, 129180, 139945, 167934, 279890, 335868, 363857, 419835, 559780, 727714, 839670, 1091571, 1455428, 1679340, 1819285, 2183142, 3638570, 4366284, 5457855, 7277140, 10915710, 21831420]

約数ペア:

[(1, 21831420), (2, 10915710), (3, 7277140), (4, 5457855), (5, 4366284), (6, 3638570), (10, 2183142), (12, 1819285), (13, 1679340), (15, 1455428), (20, 1091571), (26, 839670), (30, 727714), (39, 559780), (52, 419835), (60, 363857), (65, 335868), (78, 279890), (130, 167934), (156, 139945), (169, 129180), (195, 111956), (260, 83967), (338, 64590), (390, 55978), (507, 43060), (676, 32295), (780, 27989), (845, 25836), (1014, 21530), (1690, 12918), (2028, 10765), (2153, 10140), (2535, 8612), (3380, 6459), (4306, 5070)]