28708071

素因数分解:

$3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 46617600

約数和(自身を除く): 17909529

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 343, 483, 1029, 1127, 1213, 3381, 3639, 7889, 8491, 23667, 25473, 27899, 59437, 83697, 178311, 195293, 416059, 585879, 1248177, 1367051, 4101153, 9569357, 28708071]

約数ペア:

[(1, 28708071), (3, 9569357), (7, 4101153), (21, 1367051), (23, 1248177), (49, 585879), (69, 416059), (147, 195293), (161, 178311), (343, 83697), (483, 59437), (1029, 27899), (1127, 25473), (1213, 23667), (3381, 8491), (3639, 7889)]