21555974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31607}}^1$

素因数の和:31651

約数の個数: 16

約数和(自身を含む): 36412416

約数和(自身を除く): 14856442

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31607, 63214, 347677, 695354, 979817, 1959634, 10777987, 21555974]

約数ペア:

[(1, 21555974), (2, 10777987), (11, 1959634), (22, 979817), (31, 695354), (62, 347677), (341, 63214), (682, 31607)]