21227320

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{883}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 47895120

約数和(自身を除く): 26667800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 883, 1202, 1766, 2404, 3005, 3532, 4415, 4808, 6010, 7064, 8830, 12020, 17660, 24040, 35320, 530683, 1061366, 2122732, 2653415, 4245464, 5306830, 10613660, 21227320]

約数ペア:

[(1, 21227320), (2, 10613660), (4, 5306830), (5, 4245464), (8, 2653415), (10, 2122732), (20, 1061366), (40, 530683), (601, 35320), (883, 24040), (1202, 17660), (1766, 12020), (2404, 8830), (3005, 7064), (3532, 6010), (4415, 4808)]