208651009

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{433}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 258983424

約数和(自身を除く): 50332415

約数列:

[1, 7, 23, 41, 73, 161, 287, 433, 511, 943, 1679, 2993, 3031, 6601, 9959, 11753, 17753, 20951, 31609, 68839, 69713, 124271, 221263, 408319, 481873, 727007, 1295969, 2858233, 5089049, 9071783, 29807287, 208651009]

約数ペア:

[(1, 208651009), (7, 29807287), (23, 9071783), (41, 5089049), (73, 2858233), (161, 1295969), (287, 727007), (433, 481873), (511, 408319), (943, 221263), (1679, 124271), (2993, 69713), (3031, 68839), (6601, 31609), (9959, 20951), (11753, 17753)]