21593660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8923}}^1$

素因数の和:8954

約数の個数: 36

約数和(自身を含む): 49849464

約数和(自身を除く): 28255804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8923, 17846, 35692, 44615, 89230, 98153, 178460, 196306, 392612, 490765, 981530, 1079683, 1963060, 2159366, 4318732, 5398415, 10796830, 21593660]

約数ペア:

[(1, 21593660), (2, 10796830), (4, 5398415), (5, 4318732), (10, 2159366), (11, 1963060), (20, 1079683), (22, 981530), (44, 490765), (55, 392612), (110, 196306), (121, 178460), (220, 98153), (242, 89230), (484, 44615), (605, 35692), (1210, 17846), (2420, 8923)]