21399177

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{3011}}^1$

素因数の和:3140

約数の個数: 16

約数和(自身を含む): 30071808

約数和(自身を除く): 8672631

約数列:

[1, 3, 23, 69, 103, 309, 2369, 3011, 7107, 9033, 69253, 207759, 310133, 930399, 7133059, 21399177]

約数ペア:

[(1, 21399177), (3, 7133059), (23, 930399), (69, 310133), (103, 207759), (309, 69253), (2369, 9033), (3011, 7107)]