20916812

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{4583}}^1$

素因数の和:4757

約数の個数: 24

約数和(自身を含む): 42099456

約数和(自身を除く): 21182644

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 4583, 9166, 18332, 32081, 64162, 128324, 747029, 1494058, 2988116, 5229203, 10458406, 20916812]

約数ペア:

[(1, 20916812), (2, 10458406), (4, 5229203), (7, 2988116), (14, 1494058), (28, 747029), (163, 128324), (326, 64162), (652, 32081), (1141, 18332), (2282, 9166), (4564, 4583)]