20960149

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 24569856

約数和(自身を除く): 3609707

約数列:

[1, 7, 61, 191, 257, 427, 1337, 1799, 11651, 15677, 49087, 81557, 109739, 343609, 2994307, 20960149]

約数ペア:

[(1, 20960149), (7, 2994307), (61, 343609), (191, 109739), (257, 81557), (427, 49087), (1337, 15677), (1799, 11651)]