21968325

素因数分解:

$3^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{599}}^1$

素因数の和:778

約数の個数: 36

約数和(自身を含む): 39655200

約数和(自身を除く): 17686875

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 163, 225, 489, 599, 815, 1467, 1797, 2445, 2995, 4075, 5391, 7335, 8985, 12225, 14975, 26955, 36675, 44925, 97637, 134775, 292911, 488185, 878733, 1464555, 2440925, 4393665, 7322775, 21968325]

約数ペア:

[(1, 21968325), (3, 7322775), (5, 4393665), (9, 2440925), (15, 1464555), (25, 878733), (45, 488185), (75, 292911), (163, 134775), (225, 97637), (489, 44925), (599, 36675), (815, 26955), (1467, 14975), (1797, 12225), (2445, 8985), (2995, 7335), (4075, 5391)]