21646401

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 34922496

約数和(自身を除く): 13276095

約数列:

[1, 3, 7, 21, 31, 41, 93, 123, 217, 287, 651, 811, 861, 1271, 2433, 3813, 5677, 8897, 17031, 25141, 26691, 33251, 75423, 99753, 175987, 232757, 527961, 698271, 1030781, 3092343, 7215467, 21646401]

約数ペア:

[(1, 21646401), (3, 7215467), (7, 3092343), (21, 1030781), (31, 698271), (41, 527961), (93, 232757), (123, 175987), (217, 99753), (287, 75423), (651, 33251), (811, 26691), (861, 25141), (1271, 17031), (2433, 8897), (3813, 5677)]