20011796

素因数分解:

$2^2\times 7^2\times {\mathrm{102101}}^1$

素因数の和:102119

約数の個数: 18

約数和(自身を含む): 40738698

約数和(自身を除く): 20726902

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 102101, 204202, 408404, 714707, 1429414, 2858828, 5002949, 10005898, 20011796]

約数ペア:

[(1, 20011796), (2, 10005898), (4, 5002949), (7, 2858828), (14, 1429414), (28, 714707), (49, 408404), (98, 204202), (196, 102101)]