31439865

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 52068096

約数和(自身を除く): 20628231

約数列:

[1, 3, 5, 15, 53, 71, 159, 213, 265, 355, 557, 795, 1065, 1671, 2785, 3763, 8355, 11289, 18815, 29521, 39547, 56445, 88563, 118641, 147605, 197735, 442815, 593205, 2095991, 6287973, 10479955, 31439865]

約数ペア:

[(1, 31439865), (3, 10479955), (5, 6287973), (15, 2095991), (53, 593205), (71, 442815), (159, 197735), (213, 147605), (265, 118641), (355, 88563), (557, 56445), (795, 39547), (1065, 29521), (1671, 18815), (2785, 11289), (3763, 8355)]