21445605

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11083}}^1$

素因数の和:11137

約数の個数: 24

約数和(自身を含む): 38040288

約数和(自身を除く): 16594683

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 11083, 33249, 55415, 99747, 166245, 476569, 498735, 1429707, 2382845, 4289121, 7148535, 21445605]

約数ペア:

[(1, 21445605), (3, 7148535), (5, 4289121), (9, 2382845), (15, 1429707), (43, 498735), (45, 476569), (129, 166245), (215, 99747), (387, 55415), (645, 33249), (1935, 11083)]