20943740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17167}}^1$

素因数の和:17237

約数の個数: 24

約数和(自身を含む): 44705472

約数和(自身を除く): 23761732

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 17167, 34334, 68668, 85835, 171670, 343340, 1047187, 2094374, 4188748, 5235935, 10471870, 20943740]

約数ペア:

[(1, 20943740), (2, 10471870), (4, 5235935), (5, 4188748), (10, 2094374), (20, 1047187), (61, 343340), (122, 171670), (244, 85835), (305, 68668), (610, 34334), (1220, 17167)]