18726633

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4919}}^1$

素因数の和:4978

約数の個数: 20

約数和(自身を含む): 28575360

約数和(自身を除く): 9848727

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4919, 14757, 44271, 132813, 231193, 398439, 693579, 2080737, 6242211, 18726633]

約数ペア:

[(1, 18726633), (3, 6242211), (9, 2080737), (27, 693579), (47, 398439), (81, 231193), (141, 132813), (423, 44271), (1269, 14757), (3807, 4919)]