21809115

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2213}}^1$

素因数の和:2300

約数の個数: 32

約数和(自身を含む): 39320640

約数和(自身を除く): 17511525

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 2213, 3285, 6639, 9855, 11065, 19917, 33195, 59751, 99585, 161549, 298755, 484647, 807745, 1453941, 2423235, 4361823, 7269705, 21809115]

約数ペア:

[(1, 21809115), (3, 7269705), (5, 4361823), (9, 2423235), (15, 1453941), (27, 807745), (45, 484647), (73, 298755), (135, 161549), (219, 99585), (365, 59751), (657, 33195), (1095, 19917), (1971, 11065), (2213, 9855), (3285, 6639)]