20128562

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{1229}}^1$

素因数の和:1681

約数の個数: 16

約数和(自身を含む): 31881600

約数和(自身を除く): 11753038

約数列:

[1, 2, 19, 38, 431, 862, 1229, 2458, 8189, 16378, 23351, 46702, 529699, 1059398, 10064281, 20128562]

約数ペア:

[(1, 20128562), (2, 10064281), (19, 1059398), (38, 529699), (431, 46702), (862, 23351), (1229, 16378), (2458, 8189)]