217790721

素因数分解:

$3^3\times {\mathrm{313}}^1\times {\mathrm{25771}}^1$

素因数の和:26093

約数の個数: 16

約数和(自身を含む): 323696320

約数和(自身を除く): 105905599

約数列:

[1, 3, 9, 27, 313, 939, 2817, 8451, 25771, 77313, 231939, 695817, 8066323, 24198969, 72596907, 217790721]

約数ペア:

[(1, 217790721), (3, 72596907), (9, 24198969), (27, 8066323), (313, 695817), (939, 231939), (2817, 77313), (8451, 25771)]