20631825

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1951}}^1$

素因数の和:2014

約数の個数: 36

約数和(自身を含む): 37759488

約数和(自身を除く): 17127663

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 1951, 2115, 3525, 5853, 9755, 10575, 17559, 29265, 48775, 87795, 91697, 146325, 275091, 438975, 458485, 825273, 1375455, 2292425, 4126365, 6877275, 20631825]

約数ペア:

[(1, 20631825), (3, 6877275), (5, 4126365), (9, 2292425), (15, 1375455), (25, 825273), (45, 458485), (47, 438975), (75, 275091), (141, 146325), (225, 91697), (235, 87795), (423, 48775), (705, 29265), (1175, 17559), (1951, 10575), (2115, 9755), (3525, 5853)]