19570621

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 25194240

約数和(自身を除く): 5623619

約数列:

[1, 7, 17, 29, 53, 107, 119, 203, 371, 493, 749, 901, 1537, 1819, 3103, 3451, 5671, 6307, 10759, 12733, 21721, 26129, 39697, 52751, 96407, 164459, 182903, 369257, 674849, 1151213, 2795803, 19570621]

約数ペア:

[(1, 19570621), (7, 2795803), (17, 1151213), (29, 674849), (53, 369257), (107, 182903), (119, 164459), (203, 96407), (371, 52751), (493, 39697), (749, 26129), (901, 21721), (1537, 12733), (1819, 10759), (3103, 6307), (3451, 5671)]