20852919

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:435

約数の個数: 24

約数和(自身を含む): 30867200

約数和(自身を除く): 10014281

約数列:

[1, 3, 9, 79, 139, 211, 237, 417, 633, 711, 1251, 1899, 10981, 16669, 29329, 32943, 50007, 87987, 98829, 150021, 263961, 2316991, 6950973, 20852919]

約数ペア:

[(1, 20852919), (3, 6950973), (9, 2316991), (79, 263961), (139, 150021), (211, 98829), (237, 87987), (417, 50007), (633, 32943), (711, 29329), (1251, 16669), (1899, 10981)]