20681948

素因数分解:

$2^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{4423}}^1$

素因数の和:4601

約数の個数: 24

約数和(自身を含む): 41620992

約数和(自身を除く): 20939044

約数列:

[1, 2, 4, 7, 14, 28, 167, 334, 668, 1169, 2338, 4423, 4676, 8846, 17692, 30961, 61922, 123844, 738641, 1477282, 2954564, 5170487, 10340974, 20681948]

約数ペア:

[(1, 20681948), (2, 10340974), (4, 5170487), (7, 2954564), (14, 1477282), (28, 738641), (167, 123844), (334, 61922), (668, 30961), (1169, 17692), (2338, 8846), (4423, 4676)]