18348515

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 22476960

約数和(自身を除く): 4128445

約数列:

[1, 5, 109, 131, 257, 545, 655, 1285, 14279, 28013, 33667, 71395, 140065, 168335, 3669703, 18348515]

約数ペア:

[(1, 18348515), (5, 3669703), (109, 168335), (131, 140065), (257, 71395), (545, 33667), (655, 28013), (1285, 14279)]