18513009

素因数分解:

$3^3\times {\mathrm{557}}^1\times {\mathrm{1231}}^1$

素因数の和:1797

約数の個数: 16

約数和(自身を含む): 27498240

約数和(自身を除く): 8985231

約数列:

[1, 3, 9, 27, 557, 1231, 1671, 3693, 5013, 11079, 15039, 33237, 685667, 2057001, 6171003, 18513009]

約数ペア:

[(1, 18513009), (3, 6171003), (9, 2057001), (27, 685667), (557, 33237), (1231, 15039), (1671, 11079), (3693, 5013)]