20756816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68279}}^1$

素因数の和:68306

約数の個数: 20

約数和(自身を含む): 42333600

約数和(自身を除く): 21576784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68279, 136558, 273116, 546232, 1092464, 1297301, 2594602, 5189204, 10378408, 20756816]

約数ペア:

[(1, 20756816), (2, 10378408), (4, 5189204), (8, 2594602), (16, 1297301), (19, 1092464), (38, 546232), (76, 273116), (152, 136558), (304, 68279)]