18205649

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 6124591

約数列:

[1, 7, 11, 29, 31, 77, 203, 217, 263, 319, 341, 899, 1841, 2233, 2387, 2893, 6293, 7627, 8153, 9889, 20251, 53389, 57071, 69223, 83897, 89683, 236437, 587279, 627781, 1655059, 2600807, 18205649]

約数ペア:

[(1, 18205649), (7, 2600807), (11, 1655059), (29, 627781), (31, 587279), (77, 236437), (203, 89683), (217, 83897), (263, 69223), (319, 57071), (341, 53389), (899, 20251), (1841, 9889), (2233, 8153), (2387, 7627), (2893, 6293)]