21044317

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1987}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 25764480

約数和(自身を除く): 4720163

約数列:

[1, 7, 17, 89, 119, 623, 1513, 1987, 10591, 13909, 33779, 176843, 236453, 1237901, 3006331, 21044317]

約数ペア:

[(1, 21044317), (7, 3006331), (17, 1237901), (89, 236453), (119, 176843), (623, 33779), (1513, 13909), (1987, 10591)]