21072807

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14543}}^1$

素因数の和:14579

約数の個数: 24

約数和(自身を含む): 36301824

約数和(自身を除く): 15229017

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14543, 43629, 101801, 130887, 305403, 334489, 916209, 1003467, 2341423, 3010401, 7024269, 21072807]

約数ペア:

[(1, 21072807), (3, 7024269), (7, 3010401), (9, 2341423), (21, 1003467), (23, 916209), (63, 334489), (69, 305403), (161, 130887), (207, 101801), (483, 43629), (1449, 14543)]