19907992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1789}}^1$

素因数の和:1915

約数の個数: 32

約数和(自身を含む): 40597200

約数和(自身を除く): 20689208

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 214, 428, 856, 1391, 1789, 2782, 3578, 5564, 7156, 11128, 14312, 23257, 46514, 93028, 186056, 191423, 382846, 765692, 1531384, 2488499, 4976998, 9953996, 19907992]

約数ペア:

[(1, 19907992), (2, 9953996), (4, 4976998), (8, 2488499), (13, 1531384), (26, 765692), (52, 382846), (104, 191423), (107, 186056), (214, 93028), (428, 46514), (856, 23257), (1391, 14312), (1789, 11128), (2782, 7156), (3578, 5564)]