20199784843

素因数分解:

$7^3\times {\mathrm{109}}^1\times {\mathrm{409}}^1\times {\mathrm{1321}}^1$

素因数の和:1860

約数の個数: 32

約数和(自身を含む): 23848880000

約数和(自身を除く): 3649095157

約数列:

[1, 7, 49, 109, 343, 409, 763, 1321, 2863, 5341, 9247, 20041, 37387, 44581, 64729, 140287, 143989, 312067, 453103, 540289, 1007923, 2184469, 3782023, 7055461, 15291283, 26474161, 49388227, 58891501, 185319127, 412240507, 2885683549, 20199784843]

約数ペア:

[(1, 20199784843), (7, 2885683549), (49, 412240507), (109, 185319127), (343, 58891501), (409, 49388227), (763, 26474161), (1321, 15291283), (2863, 7055461), (5341, 3782023), (9247, 2184469), (20041, 1007923), (37387, 540289), (44581, 453103), (64729, 312067), (140287, 143989)]