21585735

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6571}}^1$

素因数の和:6655

約数の個数: 24

約数和(自身を含む): 37933584

約数和(自身を除く): 16347849

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 6571, 19713, 32855, 59139, 98565, 295695, 479683, 1439049, 2398415, 4317147, 7195245, 21585735]

約数ペア:

[(1, 21585735), (3, 7195245), (5, 4317147), (9, 2398415), (15, 1439049), (45, 479683), (73, 295695), (219, 98565), (365, 59139), (657, 32855), (1095, 19713), (3285, 6571)]