21269859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1439}}^1$

素因数の和:1834

約数の個数: 16

約数和(自身を含む): 30643200

約数和(自身を除く): 9373341

約数列:

[1, 3, 13, 39, 379, 1137, 1439, 4317, 4927, 14781, 18707, 56121, 545381, 1636143, 7089953, 21269859]

約数ペア:

[(1, 21269859), (3, 7089953), (13, 1636143), (39, 545381), (379, 56121), (1137, 18707), (1439, 14781), (4317, 4927)]