21806090

素因数分解:

$2^1\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{1783}}^1$

素因数の和:3013

約数の個数: 16

約数和(自身を含む): 39305088

約数和(自身を除く): 17498998

約数列:

[1, 2, 5, 10, 1223, 1783, 2446, 3566, 6115, 8915, 12230, 17830, 2180609, 4361218, 10903045, 21806090]

約数ペア:

[(1, 21806090), (2, 10903045), (5, 4361218), (10, 2180609), (1223, 17830), (1783, 12230), (2446, 8915), (3566, 6115)]