21278310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15091}}^1$

素因数の和:15148

約数の個数: 32

約数和(自身を含む): 52157952

約数和(自身を除く): 30879642

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705, 1410, 15091, 30182, 45273, 75455, 90546, 150910, 226365, 452730, 709277, 1418554, 2127831, 3546385, 4255662, 7092770, 10639155, 21278310]

約数ペア:

[(1, 21278310), (2, 10639155), (3, 7092770), (5, 4255662), (6, 3546385), (10, 2127831), (15, 1418554), (30, 709277), (47, 452730), (94, 226365), (141, 150910), (235, 90546), (282, 75455), (470, 45273), (705, 30182), (1410, 15091)]