20919608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{601}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 41538000

約数和(自身を除く): 20618392

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 229, 458, 601, 916, 1202, 1832, 2404, 4351, 4808, 8702, 11419, 17404, 22838, 34808, 45676, 91352, 137629, 275258, 550516, 1101032, 2614951, 5229902, 10459804, 20919608]

約数ペア:

[(1, 20919608), (2, 10459804), (4, 5229902), (8, 2614951), (19, 1101032), (38, 550516), (76, 275258), (152, 137629), (229, 91352), (458, 45676), (601, 34808), (916, 22838), (1202, 17404), (1832, 11419), (2404, 8702), (4351, 4808)]