21908750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{1031}}^1$

素因数の和:1070

約数の個数: 40

約数和(自身を含む): 43523568

約数和(自身を除く): 21614818

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 1031, 1250, 2062, 2125, 4250, 5155, 10310, 10625, 17527, 21250, 25775, 35054, 51550, 87635, 128875, 175270, 257750, 438175, 644375, 876350, 1288750, 2190875, 4381750, 10954375, 21908750]

約数ペア:

[(1, 21908750), (2, 10954375), (5, 4381750), (10, 2190875), (17, 1288750), (25, 876350), (34, 644375), (50, 438175), (85, 257750), (125, 175270), (170, 128875), (250, 87635), (425, 51550), (625, 35054), (850, 25775), (1031, 21250), (1250, 17527), (2062, 10625), (2125, 10310), (4250, 5155)]