21993060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15937}}^1$

素因数の和:15972

約数の個数: 48

約数和(自身を含む): 64262016

約数和(自身を除く): 42268956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15937, 31874, 47811, 63748, 79685, 95622, 159370, 191244, 239055, 318740, 366551, 478110, 733102, 956220, 1099653, 1466204, 1832755, 2199306, 3665510, 4398612, 5498265, 7331020, 10996530, 21993060]

約数ペア:

[(1, 21993060), (2, 10996530), (3, 7331020), (4, 5498265), (5, 4398612), (6, 3665510), (10, 2199306), (12, 1832755), (15, 1466204), (20, 1099653), (23, 956220), (30, 733102), (46, 478110), (60, 366551), (69, 318740), (92, 239055), (115, 191244), (138, 159370), (230, 95622), (276, 79685), (345, 63748), (460, 47811), (690, 31874), (1380, 15937)]