19727325

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2098

約数の個数: 36

約数和(自身を含む): 36173280

約数和(自身を除く): 16445955

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2039, 3225, 6117, 9675, 10195, 18351, 30585, 50975, 87677, 91755, 152925, 263031, 438385, 458775, 789093, 1315155, 2191925, 3945465, 6575775, 19727325]

約数ペア:

[(1, 19727325), (3, 6575775), (5, 3945465), (9, 2191925), (15, 1315155), (25, 789093), (43, 458775), (45, 438385), (75, 263031), (129, 152925), (215, 91755), (225, 87677), (387, 50975), (645, 30585), (1075, 18351), (1935, 10195), (2039, 9675), (3225, 6117)]