21140235

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4561}}^1$

素因数の和:4675

約数の個数: 24

約数和(自身を含む): 37006944

約数和(自身を除く): 15866709

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4561, 4635, 13683, 22805, 41049, 68415, 205245, 469783, 1409349, 2348915, 4228047, 7046745, 21140235]

約数ペア:

[(1, 21140235), (3, 7046745), (5, 4228047), (9, 2348915), (15, 1409349), (45, 469783), (103, 205245), (309, 68415), (515, 41049), (927, 22805), (1545, 13683), (4561, 4635)]