208557783

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{461}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 355170816

約数和(自身を除く): 146613033

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 167, 301, 387, 461, 501, 903, 1169, 1383, 1503, 2709, 3227, 3507, 4149, 7181, 9681, 10521, 19823, 21543, 29043, 50267, 59469, 64629, 76987, 138761, 150801, 178407, 230961, 416283, 452403, 538909, 692883, 1248849, 1616727, 3310441, 4850181, 9931323, 23173087, 29793969, 69519261, 208557783]

約数ペア:

[(1, 208557783), (3, 69519261), (7, 29793969), (9, 23173087), (21, 9931323), (43, 4850181), (63, 3310441), (129, 1616727), (167, 1248849), (301, 692883), (387, 538909), (461, 452403), (501, 416283), (903, 230961), (1169, 178407), (1383, 150801), (1503, 138761), (2709, 76987), (3227, 64629), (3507, 59469), (4149, 50267), (7181, 29043), (9681, 21543), (10521, 19823)]