21261180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354353}}^1$

素因数の和:354365

約数の個数: 24

約数和(自身を含む): 59531472

約数和(自身を除く): 38270292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354353, 708706, 1063059, 1417412, 1771765, 2126118, 3543530, 4252236, 5315295, 7087060, 10630590, 21261180]

約数ペア:

[(1, 21261180), (2, 10630590), (3, 7087060), (4, 5315295), (5, 4252236), (6, 3543530), (10, 2126118), (12, 1771765), (15, 1417412), (20, 1063059), (30, 708706), (60, 354353)]