81919318

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{24809}}^1$

素因数の和:24951

約数の個数: 16

約数和(自身を含む): 133378560

約数和(自身を除く): 51459242

約数列:

[1, 2, 13, 26, 127, 254, 1651, 3302, 24809, 49618, 322517, 645034, 3150743, 6301486, 40959659, 81919318]

約数ペア:

[(1, 81919318), (2, 40959659), (13, 6301486), (26, 3150743), (127, 645034), (254, 322517), (1651, 49618), (3302, 24809)]