19998755812

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17420519}}^1$

素因数の和:17420571

約数の個数: 24

約数和(自身を含む): 40973063040

約数和(自身を除く): 20974307228

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17420519, 34841038, 69682076, 121943633, 243887266, 487774532, 714241279, 1428482558, 2856965116, 4999688953, 9999377906, 19998755812]

約数ペア:

[(1, 19998755812), (2, 9999377906), (4, 4999688953), (7, 2856965116), (14, 1428482558), (28, 714241279), (41, 487774532), (82, 243887266), (164, 121943633), (287, 69682076), (574, 34841038), (1148, 17420519)]