20178472447

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2666641}}^1$

素因数の和:2666718

約数の個数: 16

約数和(自身を含む): 24575772672

約数和(自身を除く): 4397300225

約数列:

[1, 7, 23, 47, 161, 329, 1081, 7567, 2666641, 18666487, 61332743, 125332127, 429329201, 877324889, 2882638921, 20178472447]

約数ペア:

[(1, 20178472447), (7, 2882638921), (23, 877324889), (47, 429329201), (161, 125332127), (329, 61332743), (1081, 18666487), (7567, 2666641)]