21122565

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12919}}^1$

素因数の和:13036

約数の個数: 16

約数和(自身を含む): 34108800

約数和(自身を除く): 12986235

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 12919, 38757, 64595, 193785, 1408171, 4224513, 7040855, 21122565]

約数ペア:

[(1, 21122565), (3, 7040855), (5, 4224513), (15, 1408171), (109, 193785), (327, 64595), (545, 38757), (1635, 12919)]