21230824

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156109}}^1$

素因数の和:156132

約数の個数: 16

約数和(自身を含む): 42149700

約数和(自身を除く): 20918876

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156109, 312218, 624436, 1248872, 2653853, 5307706, 10615412, 21230824]

約数ペア:

[(1, 21230824), (2, 10615412), (4, 5307706), (8, 2653853), (17, 1248872), (34, 624436), (68, 312218), (136, 156109)]