21307425

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{2237}}^1$

素因数の和:2377

約数の個数: 24

約数和(自身を含む): 35521536

約数和(自身を除く): 14214111

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 2237, 3175, 6711, 9525, 11185, 33555, 55925, 167775, 284099, 852297, 1420495, 4261485, 7102475, 21307425]

約数ペア:

[(1, 21307425), (3, 7102475), (5, 4261485), (15, 1420495), (25, 852297), (75, 284099), (127, 167775), (381, 55925), (635, 33555), (1905, 11185), (2237, 9525), (3175, 6711)]