405488979

素因数分解:

$3^2\times 7^1\times {\mathrm{2531}}^1\times {\mathrm{2543}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 669906432

約数和(自身を除く): 264417453

約数列:

[1, 3, 7, 9, 21, 63, 2531, 2543, 7593, 7629, 17717, 17801, 22779, 22887, 53151, 53403, 159453, 160209, 6436333, 19308999, 45054331, 57926997, 135162993, 405488979]

約数ペア:

[(1, 405488979), (3, 135162993), (7, 57926997), (9, 45054331), (21, 19308999), (63, 6436333), (2531, 160209), (2543, 159453), (7593, 53403), (7629, 53151), (17717, 22887), (17801, 22779)]