21710577

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{1307}}^1$

素因数の和:1437

約数の個数: 24

約数和(自身を含む): 33997536

約数和(自身を除く): 12286959

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 1307, 2373, 3921, 5537, 9149, 16611, 27447, 64043, 147691, 192129, 443073, 1033837, 3101511, 7236859, 21710577]

約数ペア:

[(1, 21710577), (3, 7236859), (7, 3101511), (21, 1033837), (49, 443073), (113, 192129), (147, 147691), (339, 64043), (791, 27447), (1307, 16611), (2373, 9149), (3921, 5537)]