16988816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{81677}}^1$

素因数の和:81698

約数の個数: 20

約数和(自身を含む): 35448252

約数和(自身を除く): 18459436

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 81677, 163354, 326708, 653416, 1061801, 1306832, 2123602, 4247204, 8494408, 16988816]

約数ペア:

[(1, 16988816), (2, 8494408), (4, 4247204), (8, 2123602), (13, 1306832), (16, 1061801), (26, 653416), (52, 326708), (104, 163354), (208, 81677)]