21180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 59472

約数和(自身を除く): 38292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353, 706, 1059, 1412, 1765, 2118, 3530, 4236, 5295, 7060, 10590, 21180]

約数ペア:

[(1, 21180), (2, 10590), (3, 7060), (4, 5295), (5, 4236), (6, 3530), (10, 2118), (12, 1765), (15, 1412), (20, 1059), (30, 706), (60, 353)]