21000929475

素因数分解:

$3^1\times 5^2\times {\mathrm{719}}^1\times {\mathrm{389447}}^1$

素因数の和:390179

約数の個数: 24

約数和(自身を含む): 34769917440

約数和(自身を除く): 13768987965

約数列:

[1, 3, 5, 15, 25, 75, 719, 2157, 3595, 10785, 17975, 53925, 389447, 1168341, 1947235, 5841705, 9736175, 29208525, 280012393, 840037179, 1400061965, 4200185895, 7000309825, 21000929475]

約数ペア:

[(1, 21000929475), (3, 7000309825), (5, 4200185895), (15, 1400061965), (25, 840037179), (75, 280012393), (719, 29208525), (2157, 9736175), (3595, 5841705), (10785, 1947235), (17975, 1168341), (53925, 389447)]