1721331

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:360

約数の個数: 20

約数和(自身を含む): 2613600

約数和(自身を除く): 892269

約数列:

[1, 3, 9, 27, 79, 81, 237, 269, 711, 807, 2133, 2421, 6399, 7263, 21251, 21789, 63753, 191259, 573777, 1721331]

約数ペア:

[(1, 1721331), (3, 573777), (9, 191259), (27, 63753), (79, 21789), (81, 21251), (237, 7263), (269, 6399), (711, 2421), (807, 2133)]