21218250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1528

約数の個数: 64

約数和(自身を含む): 55785600

約数和(自身を除く): 34567350

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 125, 150, 190, 250, 285, 375, 475, 570, 750, 950, 1425, 1489, 2375, 2850, 2978, 4467, 4750, 7125, 7445, 8934, 14250, 14890, 22335, 28291, 37225, 44670, 56582, 74450, 84873, 111675, 141455, 169746, 186125, 223350, 282910, 372250, 424365, 558375, 707275, 848730, 1116750, 1414550, 2121825, 3536375, 4243650, 7072750, 10609125, 21218250]

約数ペア:

[(1, 21218250), (2, 10609125), (3, 7072750), (5, 4243650), (6, 3536375), (10, 2121825), (15, 1414550), (19, 1116750), (25, 848730), (30, 707275), (38, 558375), (50, 424365), (57, 372250), (75, 282910), (95, 223350), (114, 186125), (125, 169746), (150, 141455), (190, 111675), (250, 84873), (285, 74450), (375, 56582), (475, 44670), (570, 37225), (750, 28291), (950, 22335), (1425, 14890), (1489, 14250), (2375, 8934), (2850, 7445), (2978, 7125), (4467, 4750)]