28042221

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{8647}}^1$

素因数の和:8720

約数の個数: 16

約数和(自身を含む): 39849984

約数和(自身を除く): 11807763

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 8647, 25941, 198881, 406409, 596643, 1219227, 9347407, 28042221]

約数ペア:

[(1, 28042221), (3, 9347407), (23, 1219227), (47, 596643), (69, 406409), (141, 198881), (1081, 25941), (3243, 8647)]