21618200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5689}}^1$

素因数の和:5724

約数の個数: 48

約数和(自身を含む): 52917000

約数和(自身を除く): 31298800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5689, 11378, 22756, 28445, 45512, 56890, 108091, 113780, 142225, 216182, 227560, 284450, 432364, 540455, 568900, 864728, 1080910, 1137800, 2161820, 2702275, 4323640, 5404550, 10809100, 21618200]

約数ペア:

[(1, 21618200), (2, 10809100), (4, 5404550), (5, 4323640), (8, 2702275), (10, 2161820), (19, 1137800), (20, 1080910), (25, 864728), (38, 568900), (40, 540455), (50, 432364), (76, 284450), (95, 227560), (100, 216182), (152, 142225), (190, 113780), (200, 108091), (380, 56890), (475, 45512), (760, 28445), (950, 22756), (1900, 11378), (3800, 5689)]