20163409

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{613}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 23891968

約数和(自身を除く): 3728559

約数列:

[1, 7, 37, 127, 259, 613, 889, 4291, 4699, 22681, 32893, 77851, 158767, 544957, 2880487, 20163409]

約数ペア:

[(1, 20163409), (7, 2880487), (37, 544957), (127, 158767), (259, 77851), (613, 32893), (889, 22681), (4291, 4699)]