21587972

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6823}}^1$

素因数の和:6947

約数の個数: 24

約数和(自身を含む): 43564416

約数和(自身を除く): 21976444

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6823, 13646, 27292, 47761, 95522, 191044, 770999, 1541998, 3083996, 5396993, 10793986, 21587972]

約数ペア:

[(1, 21587972), (2, 10793986), (4, 5396993), (7, 3083996), (14, 1541998), (28, 770999), (113, 191044), (226, 95522), (452, 47761), (791, 27292), (1582, 13646), (3164, 6823)]