19725794

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{5711}}^1$

素因数の和:5881

約数の個数: 16

約数和(自身を含む): 32489856

約数和(自身を除く): 12764062

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 5711, 11422, 62821, 125642, 896627, 1793254, 9862897, 19725794]

約数ペア:

[(1, 19725794), (2, 9862897), (11, 1793254), (22, 896627), (157, 125642), (314, 62821), (1727, 11422), (3454, 5711)]