218177589

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{1747}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 351278080

約数和(自身を除く): 133100491

約数列:

[1, 3, 7, 19, 21, 57, 133, 313, 399, 939, 1747, 2191, 5241, 5947, 6573, 12229, 17841, 33193, 36687, 41629, 99579, 124887, 232351, 546811, 697053, 1640433, 3827677, 10389409, 11483031, 31168227, 72725863, 218177589]

約数ペア:

[(1, 218177589), (3, 72725863), (7, 31168227), (19, 11483031), (21, 10389409), (57, 3827677), (133, 1640433), (313, 697053), (399, 546811), (939, 232351), (1747, 124887), (2191, 99579), (5241, 41629), (5947, 36687), (6573, 33193), (12229, 17841)]