21513750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{5737}}^1$

素因数の和:5762

約数の個数: 40

約数和(自身を含む): 53776536

約数和(自身を除く): 32262786

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 750, 1250, 1875, 3750, 5737, 11474, 17211, 28685, 34422, 57370, 86055, 143425, 172110, 286850, 430275, 717125, 860550, 1434250, 2151375, 3585625, 4302750, 7171250, 10756875, 21513750]

約数ペア:

[(1, 21513750), (2, 10756875), (3, 7171250), (5, 4302750), (6, 3585625), (10, 2151375), (15, 1434250), (25, 860550), (30, 717125), (50, 430275), (75, 286850), (125, 172110), (150, 143425), (250, 86055), (375, 57370), (625, 34422), (750, 28685), (1250, 17211), (1875, 11474), (3750, 5737)]