19962736

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30431}}^1$

素因数の和:30480

約数の個数: 20

約数和(自身を含む): 39622464

約数和(自身を除く): 19659728

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30431, 60862, 121724, 243448, 486896, 1247671, 2495342, 4990684, 9981368, 19962736]

約数ペア:

[(1, 19962736), (2, 9981368), (4, 4990684), (8, 2495342), (16, 1247671), (41, 486896), (82, 243448), (164, 121724), (328, 60862), (656, 30431)]