21552705

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1091}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 37477440

約数和(自身を除く): 15924735

約数列:

[1, 3, 5, 9, 15, 45, 439, 1091, 1317, 2195, 3273, 3951, 5455, 6585, 9819, 16365, 19755, 49095, 478949, 1436847, 2394745, 4310541, 7184235, 21552705]

約数ペア:

[(1, 21552705), (3, 7184235), (5, 4310541), (9, 2394745), (15, 1436847), (45, 478949), (439, 49095), (1091, 19755), (1317, 16365), (2195, 9819), (3273, 6585), (3951, 5455)]