291720009

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1\times {\mathrm{457}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 451111680

約数和(自身を除く): 159391671

約数列:

[1, 3, 7, 21, 113, 269, 339, 457, 791, 807, 1371, 1883, 2373, 3199, 5649, 9597, 30397, 51641, 91191, 122933, 154923, 212779, 361487, 368799, 638337, 860531, 1084461, 2581593, 13891429, 41674287, 97240003, 291720009]

約数ペア:

[(1, 291720009), (3, 97240003), (7, 41674287), (21, 13891429), (113, 2581593), (269, 1084461), (339, 860531), (457, 638337), (791, 368799), (807, 361487), (1371, 212779), (1883, 154923), (2373, 122933), (3199, 91191), (5649, 51641), (9597, 30397)]