20952993

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 31656960

約数和(自身を除く): 10703967

約数列:

[1, 3, 17, 29, 31, 51, 87, 93, 457, 493, 527, 899, 1371, 1479, 1581, 2697, 7769, 13253, 14167, 15283, 23307, 39759, 42501, 45849, 225301, 240839, 410843, 675903, 722517, 1232529, 6984331, 20952993]

約数ペア:

[(1, 20952993), (3, 6984331), (17, 1232529), (29, 722517), (31, 675903), (51, 410843), (87, 240839), (93, 225301), (457, 45849), (493, 42501), (527, 39759), (899, 23307), (1371, 15283), (1479, 14167), (1581, 13253), (2697, 7769)]