21254790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{708493}}^1$

素因数の和:708503

約数の個数: 16

約数和(自身を含む): 51011568

約数和(自身を除く): 29756778

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 708493, 1416986, 2125479, 3542465, 4250958, 7084930, 10627395, 21254790]

約数ペア:

[(1, 21254790), (2, 10627395), (3, 7084930), (5, 4250958), (6, 3542465), (10, 2125479), (15, 1416986), (30, 708493)]