20408068

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 36352512

約数和(自身を除く): 15944444

約数列:

[1, 2, 4, 137, 167, 223, 274, 334, 446, 548, 668, 892, 22879, 30551, 37241, 45758, 61102, 74482, 91516, 122204, 148964, 5102017, 10204034, 20408068]

約数ペア:

[(1, 20408068), (2, 10204034), (4, 5102017), (137, 148964), (167, 122204), (223, 91516), (274, 74482), (334, 61102), (446, 45758), (548, 37241), (668, 30551), (892, 22879)]