20129151

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7207}}^1$

素因数の和:7243

約数の個数: 24

約数和(自身を含む): 32868480

約数和(自身を除く): 12739329

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7207, 21621, 50449, 136933, 151347, 353143, 410799, 958531, 1059429, 2875593, 6709717, 20129151]

約数ペア:

[(1, 20129151), (3, 6709717), (7, 2875593), (19, 1059429), (21, 958531), (49, 410799), (57, 353143), (133, 151347), (147, 136933), (399, 50449), (931, 21621), (2793, 7207)]