21055258

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2843}}^1$

素因数の和:2898

約数の個数: 24

約数和(自身を含む): 37745568

約数和(自身を除く): 16690310

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 529, 1058, 2843, 3703, 5686, 7406, 19901, 39802, 65389, 130778, 457723, 915446, 1503947, 3007894, 10527629, 21055258]

約数ペア:

[(1, 21055258), (2, 10527629), (7, 3007894), (14, 1503947), (23, 915446), (46, 457723), (161, 130778), (322, 65389), (529, 39802), (1058, 19901), (2843, 7406), (3703, 5686)]