20681906

素因数分解:

$2^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{6451}}^1$

素因数の和:6689

約数の個数: 16

約数和(自身を含む): 35615040

約数和(自身を除く): 14933134

約数列:

[1, 2, 7, 14, 229, 458, 1603, 3206, 6451, 12902, 45157, 90314, 1477279, 2954558, 10340953, 20681906]

約数ペア:

[(1, 20681906), (2, 10340953), (7, 2954558), (14, 1477279), (229, 90314), (458, 45157), (1603, 12902), (3206, 6451)]