20918583

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10711}}^1$

素因数の和:10755

約数の個数: 24

約数和(自身を含む): 35649536

約数和(自身を除く): 14730953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10711, 32133, 74977, 96399, 224931, 332041, 674793, 996123, 2324287, 2988369, 6972861, 20918583]

約数ペア:

[(1, 20918583), (3, 6972861), (7, 2988369), (9, 2324287), (21, 996123), (31, 674793), (63, 332041), (93, 224931), (217, 96399), (279, 74977), (651, 32133), (1953, 10711)]