21735405

素因数分解:

$3^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{691}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 38862720

約数和(自身を除く): 17127315

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 233, 691, 699, 1165, 2073, 2097, 3455, 3495, 6219, 6291, 10365, 10485, 18657, 31095, 31455, 93285, 161003, 483009, 805015, 1449027, 2415045, 4347081, 7245135, 21735405]

約数ペア:

[(1, 21735405), (3, 7245135), (5, 4347081), (9, 2415045), (15, 1449027), (27, 805015), (45, 483009), (135, 161003), (233, 93285), (691, 31455), (699, 31095), (1165, 18657), (2073, 10485), (2097, 10365), (3455, 6291), (3495, 6219)]