15531993

素因数分解:

$3^4\times {\mathrm{337}}^1\times {\mathrm{569}}^1$

素因数の和:918

約数の個数: 20

約数和(自身を含む): 23311860

約数和(自身を除く): 7779867

約数列:

[1, 3, 9, 27, 81, 337, 569, 1011, 1707, 3033, 5121, 9099, 15363, 27297, 46089, 191753, 575259, 1725777, 5177331, 15531993]

約数ペア:

[(1, 15531993), (3, 5177331), (9, 1725777), (27, 575259), (81, 191753), (337, 46089), (569, 27297), (1011, 15363), (1707, 9099), (3033, 5121)]