20007665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4481}}^1$

素因数の和:4552

約数の個数: 16

約数和(自身を含む): 25816320

約数和(自身を除く): 5808655

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 4481, 22405, 85139, 210607, 425695, 1053035, 4001533, 20007665]

約数ペア:

[(1, 20007665), (5, 4001533), (19, 1053035), (47, 425695), (95, 210607), (235, 85139), (893, 22405), (4465, 4481)]