19978746

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{367}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 41192448

約数和(自身を除く): 21213702

約数列:

[1, 2, 3, 6, 43, 86, 129, 211, 258, 367, 422, 633, 734, 1101, 1266, 2202, 9073, 15781, 18146, 27219, 31562, 47343, 54438, 77437, 94686, 154874, 232311, 464622, 3329791, 6659582, 9989373, 19978746]

約数ペア:

[(1, 19978746), (2, 9989373), (3, 6659582), (6, 3329791), (43, 464622), (86, 232311), (129, 154874), (211, 94686), (258, 77437), (367, 54438), (422, 47343), (633, 31562), (734, 27219), (1101, 18146), (1266, 15781), (2202, 9073)]