21945770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2591}}^1$

素因数の和:2627

約数の個数: 48

約数和(自身を含む): 49641984

約数和(自身を除く): 27696214

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2591, 4235, 5182, 8470, 12955, 18137, 25910, 28501, 36274, 57002, 90685, 142505, 181370, 199507, 285010, 313511, 399014, 627022, 997535, 1567555, 1995070, 2194577, 3135110, 4389154, 10972885, 21945770]

約数ペア:

[(1, 21945770), (2, 10972885), (5, 4389154), (7, 3135110), (10, 2194577), (11, 1995070), (14, 1567555), (22, 997535), (35, 627022), (55, 399014), (70, 313511), (77, 285010), (110, 199507), (121, 181370), (154, 142505), (242, 90685), (385, 57002), (605, 36274), (770, 28501), (847, 25910), (1210, 18137), (1694, 12955), (2591, 8470), (4235, 5182)]