131245919

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{4649}}^1$

素因数の和:4802

約数の個数: 16

約数和(自身を含む): 155496000

約数和(自身を除く): 24250081

約数列:

[1, 7, 37, 109, 259, 763, 4033, 4649, 28231, 32543, 172013, 506741, 1204091, 3547187, 18749417, 131245919]

約数ペア:

[(1, 131245919), (7, 18749417), (37, 3547187), (109, 1204091), (259, 506741), (763, 172013), (4033, 32543), (4649, 28231)]