81557778

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{256471}}^1$

素因数の和:256529

約数の個数: 16

約数和(自身を含む): 166193856

約数和(自身を除く): 84636078

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 256471, 512942, 769413, 1538826, 13592963, 27185926, 40778889, 81557778]

約数ペア:

[(1, 81557778), (2, 40778889), (3, 27185926), (6, 13592963), (53, 1538826), (106, 769413), (159, 512942), (318, 256471)]