21368010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 31819830

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 89, 106, 151, 159, 178, 265, 267, 302, 318, 445, 453, 530, 534, 755, 795, 890, 906, 1335, 1510, 1590, 2265, 2670, 4530, 4717, 8003, 9434, 13439, 14151, 16006, 23585, 24009, 26878, 28302, 40015, 40317, 47170, 48018, 67195, 70755, 80030, 80634, 120045, 134390, 141510, 201585, 240090, 403170, 712267, 1424534, 2136801, 3561335, 4273602, 7122670, 10684005, 21368010]

約数ペア:

[(1, 21368010), (2, 10684005), (3, 7122670), (5, 4273602), (6, 3561335), (10, 2136801), (15, 1424534), (30, 712267), (53, 403170), (89, 240090), (106, 201585), (151, 141510), (159, 134390), (178, 120045), (265, 80634), (267, 80030), (302, 70755), (318, 67195), (445, 48018), (453, 47170), (530, 40317), (534, 40015), (755, 28302), (795, 26878), (890, 24009), (906, 23585), (1335, 16006), (1510, 14151), (1590, 13439), (2265, 9434), (2670, 8003), (4530, 4717)]