21820384

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{40111}}^1$

素因数の和:40138

約数の個数: 24

約数和(自身を含む): 45487008

約数和(自身を除く): 23666624

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 40111, 80222, 160444, 320888, 641776, 681887, 1283552, 1363774, 2727548, 5455096, 10910192, 21820384]

約数ペア:

[(1, 21820384), (2, 10910192), (4, 5455096), (8, 2727548), (16, 1363774), (17, 1283552), (32, 681887), (34, 641776), (68, 320888), (136, 160444), (272, 80222), (544, 40111)]