1220867978

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{162739}}^1$

素因数の和:162794

約数の個数: 24

約数和(自身を含む): 2077864320

約数和(自身を除く): 856996342

約数列:

[1, 2, 11, 22, 31, 62, 121, 242, 341, 682, 3751, 7502, 162739, 325478, 1790129, 3580258, 5044909, 10089818, 19691419, 39382838, 55493999, 110987998, 610433989, 1220867978]

約数ペア:

[(1, 1220867978), (2, 610433989), (11, 110987998), (22, 55493999), (31, 39382838), (62, 19691419), (121, 10089818), (242, 5044909), (341, 3580258), (682, 1790129), (3751, 325478), (7502, 162739)]