13721421

素因数分解:

$3^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{347}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 21422880

約数和(自身を除く): 7701459

約数列:

[1, 3, 7, 21, 49, 147, 269, 347, 807, 1041, 1883, 2429, 5649, 7287, 13181, 17003, 39543, 51009, 93343, 280029, 653401, 1960203, 4573807, 13721421]

約数ペア:

[(1, 13721421), (3, 4573807), (7, 1960203), (21, 653401), (49, 280029), (147, 93343), (269, 51009), (347, 39543), (807, 17003), (1041, 13181), (1883, 7287), (2429, 5649)]