20553638

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1601}}^1$

素因数の和:1748

約数の個数: 24

約数和(自身を含む): 36160344

約数和(自身を除く): 15606706

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 917, 1601, 1834, 3202, 6419, 11207, 12838, 22414, 78449, 156898, 209731, 419462, 1468117, 2936234, 10276819, 20553638]

約数ペア:

[(1, 20553638), (2, 10276819), (7, 2936234), (14, 1468117), (49, 419462), (98, 209731), (131, 156898), (262, 78449), (917, 22414), (1601, 12838), (1834, 11207), (3202, 6419)]