281998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:243

約数の個数: 16

約数和(自身を含む): 458640

約数和(自身を除く): 176642

約数列:

[1, 2, 19, 38, 41, 82, 181, 362, 779, 1558, 3439, 6878, 7421, 14842, 140999, 281998]

約数ペア:

[(1, 281998), (2, 140999), (19, 14842), (38, 7421), (41, 6878), (82, 3439), (181, 1558), (362, 779)]