21990762

素因数分解:

$2^1\times 3^2\times {\mathrm{613}}^1\times {\mathrm{1993}}^1$

素因数の和:2614

約数の個数: 24

約数和(自身を含む): 47748324

約数和(自身を除く): 25757562

約数列:

[1, 2, 3, 6, 9, 18, 613, 1226, 1839, 1993, 3678, 3986, 5517, 5979, 11034, 11958, 17937, 35874, 1221709, 2443418, 3665127, 7330254, 10995381, 21990762]

約数ペア:

[(1, 21990762), (2, 10995381), (3, 7330254), (6, 3665127), (9, 2443418), (18, 1221709), (613, 35874), (1226, 17937), (1839, 11958), (1993, 11034), (3678, 5979), (3986, 5517)]