18688913

素因数分解:

${\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:416

約数の個数: 16

約数和(自身を含む): 20416320

約数和(自身を除く): 1727407

約数列:

[1, 19, 53, 67, 277, 1007, 1273, 3551, 5263, 14681, 18559, 67469, 278939, 352621, 983627, 18688913]

約数ペア:

[(1, 18688913), (19, 983627), (53, 352621), (67, 278939), (277, 67469), (1007, 18559), (1273, 14681), (3551, 5263)]