20211000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{6737}}^1$

素因数の和:6761

約数の個数: 64

約数和(自身を含む): 63067680

約数和(自身を除く): 42856680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 6737, 13474, 20211, 26948, 33685, 40422, 53896, 67370, 80844, 101055, 134740, 161688, 168425, 202110, 269480, 336850, 404220, 505275, 673700, 808440, 842125, 1010550, 1347400, 1684250, 2021100, 2526375, 3368500, 4042200, 5052750, 6737000, 10105500, 20211000]

約数ペア:

[(1, 20211000), (2, 10105500), (3, 6737000), (4, 5052750), (5, 4042200), (6, 3368500), (8, 2526375), (10, 2021100), (12, 1684250), (15, 1347400), (20, 1010550), (24, 842125), (25, 808440), (30, 673700), (40, 505275), (50, 404220), (60, 336850), (75, 269480), (100, 202110), (120, 168425), (125, 161688), (150, 134740), (200, 101055), (250, 80844), (300, 67370), (375, 53896), (500, 40422), (600, 33685), (750, 26948), (1000, 20211), (1500, 13474), (3000, 6737)]