21259992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68141}}^1$

素因数の和:68163

約数の個数: 32

約数和(自身を含む): 57239280

約数和(自身を除く): 35979288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68141, 136282, 204423, 272564, 408846, 545128, 817692, 885833, 1635384, 1771666, 2657499, 3543332, 5314998, 7086664, 10629996, 21259992]

約数ペア:

[(1, 21259992), (2, 10629996), (3, 7086664), (4, 5314998), (6, 3543332), (8, 2657499), (12, 1771666), (13, 1635384), (24, 885833), (26, 817692), (39, 545128), (52, 408846), (78, 272564), (104, 204423), (156, 136282), (312, 68141)]