18881433

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{56701}}^1$

素因数の和:56744

約数の個数: 12

約数和(自身を含む): 28010788

約数和(自身を除く): 9129355

約数列:

[1, 3, 9, 37, 111, 333, 56701, 170103, 510309, 2097937, 6293811, 18881433]

約数ペア:

[(1, 18881433), (3, 6293811), (9, 2097937), (37, 510309), (111, 170103), (333, 56701)]