21147810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30649}}^1$

素因数の和:30682

約数の個数: 32

約数和(自身を含む): 52963200

約数和(自身を除く): 31815390

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 30649, 61298, 91947, 153245, 183894, 306490, 459735, 704927, 919470, 1409854, 2114781, 3524635, 4229562, 7049270, 10573905, 21147810]

約数ペア:

[(1, 21147810), (2, 10573905), (3, 7049270), (5, 4229562), (6, 3524635), (10, 2114781), (15, 1409854), (23, 919470), (30, 704927), (46, 459735), (69, 306490), (115, 183894), (138, 153245), (230, 91947), (345, 61298), (690, 30649)]