21652587

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:424

約数の個数: 36

約数和(自身を含む): 35064120

約数和(自身を除く): 13411533

約数列:

[1, 3, 9, 11, 33, 59, 99, 121, 177, 337, 363, 531, 649, 1011, 1089, 1947, 3033, 3707, 5841, 7139, 11121, 19883, 21417, 33363, 40777, 59649, 64251, 122331, 178947, 218713, 366993, 656139, 1968417, 2405843, 7217529, 21652587]

約数ペア:

[(1, 21652587), (3, 7217529), (9, 2405843), (11, 1968417), (33, 656139), (59, 366993), (99, 218713), (121, 178947), (177, 122331), (337, 64251), (363, 59649), (531, 40777), (649, 33363), (1011, 21417), (1089, 19883), (1947, 11121), (3033, 7139), (3707, 5841)]