19509974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{28607}}^1$

素因数の和:28651

約数の個数: 16

約数和(自身を含む): 32956416

約数和(自身を除く): 13446442

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 28607, 57214, 314677, 629354, 886817, 1773634, 9754987, 19509974]

約数ペア:

[(1, 19509974), (2, 9754987), (11, 1773634), (22, 886817), (31, 629354), (62, 314677), (341, 57214), (682, 28607)]