21049179

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{1061}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 29820960

約数和(自身を除く): 8771781

約数列:

[1, 3, 17, 51, 389, 1061, 1167, 3183, 6613, 18037, 19839, 54111, 412729, 1238187, 7016393, 21049179]

約数ペア:

[(1, 21049179), (3, 7016393), (17, 1238187), (51, 412729), (389, 54111), (1061, 19839), (1167, 18037), (3183, 6613)]