21282033

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 30711648

約数和(自身を除く): 9429615

約数列:

[1, 3, 19, 43, 57, 129, 361, 457, 817, 1083, 1371, 2451, 8683, 15523, 19651, 26049, 46569, 58953, 164977, 373369, 494931, 1120107, 7094011, 21282033]

約数ペア:

[(1, 21282033), (3, 7094011), (19, 1120107), (43, 494931), (57, 373369), (129, 164977), (361, 58953), (457, 46569), (817, 26049), (1083, 19651), (1371, 15523), (2451, 8683)]