12175821

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1231}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 20244224

約数和(自身を除く): 8068403

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1231, 1413, 3297, 3693, 8617, 9891, 11079, 25851, 77553, 193267, 579801, 1352869, 1739403, 4058607, 12175821]

約数ペア:

[(1, 12175821), (3, 4058607), (7, 1739403), (9, 1352869), (21, 579801), (63, 193267), (157, 77553), (471, 25851), (1099, 11079), (1231, 9891), (1413, 8617), (3297, 3693)]