21176045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{739}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 27812160

約数和(自身を除く): 6636115

約数列:

[1, 5, 11, 55, 521, 739, 2605, 3695, 5731, 8129, 28655, 40645, 385019, 1925095, 4235209, 21176045]

約数ペア:

[(1, 21176045), (5, 4235209), (11, 1925095), (55, 385019), (521, 40645), (739, 28655), (2605, 8129), (3695, 5731)]