128515513

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{15061}}^1$

素因数の和:15144

約数の個数: 16

約数和(自身を含む): 156162816

約数和(自身を除く): 27647303

約数列:

[1, 7, 23, 53, 161, 371, 1219, 8533, 15061, 105427, 346403, 798233, 2424821, 5587631, 18359359, 128515513]

約数ペア:

[(1, 128515513), (7, 18359359), (23, 5587631), (53, 2424821), (161, 798233), (371, 346403), (1219, 105427), (8533, 15061)]