12991408

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{1427}}^1$

素因数の和:2004

約数の個数: 20

約数和(自身を含む): 25232760

約数和(自身を除く): 12241352

約数列:

[1, 2, 4, 8, 16, 569, 1138, 1427, 2276, 2854, 4552, 5708, 9104, 11416, 22832, 811963, 1623926, 3247852, 6495704, 12991408]

約数ペア:

[(1, 12991408), (2, 6495704), (4, 3247852), (8, 1623926), (16, 811963), (569, 22832), (1138, 11416), (1427, 9104), (2276, 5708), (2854, 4552)]