21570773

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1663}}^1$

素因数の和:1796

約数の個数: 16

約数和(自身を含む): 26357760

約数和(自身を除く): 4786987

約数列:

[1, 7, 17, 109, 119, 763, 1663, 1853, 11641, 12971, 28271, 181267, 197897, 1268869, 3081539, 21570773]

約数ペア:

[(1, 21570773), (7, 3081539), (17, 1268869), (109, 197897), (119, 181267), (763, 28271), (1663, 12971), (1853, 11641)]