18735924

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 26442636

約数列:

[1, 2, 3, 4, 6, 12, 53, 89, 106, 159, 178, 212, 267, 318, 331, 356, 534, 636, 662, 993, 1068, 1324, 1986, 3972, 4717, 9434, 14151, 17543, 18868, 28302, 29459, 35086, 52629, 56604, 58918, 70172, 88377, 105258, 117836, 176754, 210516, 353508, 1561327, 3122654, 4683981, 6245308, 9367962, 18735924]

約数ペア:

[(1, 18735924), (2, 9367962), (3, 6245308), (4, 4683981), (6, 3122654), (12, 1561327), (53, 353508), (89, 210516), (106, 176754), (159, 117836), (178, 105258), (212, 88377), (267, 70172), (318, 58918), (331, 56604), (356, 52629), (534, 35086), (636, 29459), (662, 28302), (993, 18868), (1068, 17543), (1324, 14151), (1986, 9434), (3972, 4717)]