21005218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{3559}}^1$

素因数の和:3801

約数の個数: 16

約数和(自身を含む): 34090560

約数和(自身を除く): 13085342

約数列:

[1, 2, 13, 26, 227, 454, 2951, 3559, 5902, 7118, 46267, 92534, 807893, 1615786, 10502609, 21005218]

約数ペア:

[(1, 21005218), (2, 10502609), (13, 1615786), (26, 807893), (227, 92534), (454, 46267), (2951, 7118), (3559, 5902)]