19977512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131431}}^1$

素因数の和:131456

約数の個数: 16

約数和(自身を含む): 39429600

約数和(自身を除く): 19452088

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131431, 262862, 525724, 1051448, 2497189, 4994378, 9988756, 19977512]

約数ペア:

[(1, 19977512), (2, 9988756), (4, 4994378), (8, 2497189), (19, 1051448), (38, 525724), (76, 262862), (152, 131431)]