17921275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1301}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 24217200

約数和(自身を除く): 6295925

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1301, 2755, 6505, 13775, 24719, 32525, 37729, 123595, 188645, 617975, 716851, 943225, 3584255, 17921275]

約数ペア:

[(1, 17921275), (5, 3584255), (19, 943225), (25, 716851), (29, 617975), (95, 188645), (145, 123595), (475, 37729), (551, 32525), (725, 24719), (1301, 13775), (2755, 6505)]