206021978

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{4019}}^1$

素因数の和:4130

約数の個数: 24

約数和(自身を含む): 330829920

約数和(自身を除く): 124807942

約数列:

[1, 2, 19, 38, 71, 142, 361, 722, 1349, 2698, 4019, 8038, 25631, 51262, 76361, 152722, 285349, 570698, 1450859, 2901718, 5421631, 10843262, 103010989, 206021978]

約数ペア:

[(1, 206021978), (2, 103010989), (19, 10843262), (38, 5421631), (71, 2901718), (142, 1450859), (361, 570698), (722, 285349), (1349, 152722), (2698, 76361), (4019, 51262), (8038, 25631)]