215381947

素因数分解:

${\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{1091}}^1$

素因数の和:1370

約数の個数: 16

約数和(自身を含む): 238702464

約数和(自身を除く): 23320517

約数列:

[1, 11, 131, 137, 1091, 1441, 1507, 12001, 17947, 142921, 149467, 197417, 1572131, 1644137, 19580177, 215381947]

約数ペア:

[(1, 215381947), (11, 19580177), (131, 1644137), (137, 1572131), (1091, 197417), (1441, 149467), (1507, 142921), (12001, 17947)]