21527715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 39261600

約数和(自身を除く): 17733885

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 121, 145, 165, 319, 363, 409, 435, 605, 957, 1227, 1595, 1815, 2045, 3509, 4499, 4785, 6135, 10527, 11861, 13497, 17545, 22495, 35583, 49489, 52635, 59305, 67485, 130471, 148467, 177915, 247445, 391413, 652355, 742335, 1435181, 1957065, 4305543, 7175905, 21527715]

約数ペア:

[(1, 21527715), (3, 7175905), (5, 4305543), (11, 1957065), (15, 1435181), (29, 742335), (33, 652355), (55, 391413), (87, 247445), (121, 177915), (145, 148467), (165, 130471), (319, 67485), (363, 59305), (409, 52635), (435, 49489), (605, 35583), (957, 22495), (1227, 17545), (1595, 13497), (1815, 11861), (2045, 10527), (3509, 6135), (4499, 4785)]