21397284

素因数分解:

$2^2\times 3^4\times {\mathrm{66041}}^1$

素因数の和:66057

約数の個数: 30

約数和(自身を含む): 55937574

約数和(自身を除く): 34540290

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 66041, 132082, 198123, 264164, 396246, 594369, 792492, 1188738, 1783107, 2377476, 3566214, 5349321, 7132428, 10698642, 21397284]

約数ペア:

[(1, 21397284), (2, 10698642), (3, 7132428), (4, 5349321), (6, 3566214), (9, 2377476), (12, 1783107), (18, 1188738), (27, 792492), (36, 594369), (54, 396246), (81, 264164), (108, 198123), (162, 132082), (324, 66041)]