231888139

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 296932608

約数和(自身を除く): 65044469

約数列:

[1, 7, 23, 37, 49, 67, 83, 161, 259, 469, 581, 851, 1127, 1541, 1813, 1909, 2479, 3071, 3283, 4067, 5561, 5957, 10787, 13363, 17353, 21497, 38927, 41699, 57017, 70633, 75509, 93541, 121471, 127903, 150479, 205757, 272489, 399119, 494431, 895321, 1440299, 2793833, 3461017, 4732411, 6267247, 10082093, 33126877, 231888139]

約数ペア:

[(1, 231888139), (7, 33126877), (23, 10082093), (37, 6267247), (49, 4732411), (67, 3461017), (83, 2793833), (161, 1440299), (259, 895321), (469, 494431), (581, 399119), (851, 272489), (1127, 205757), (1541, 150479), (1813, 127903), (1909, 121471), (2479, 93541), (3071, 75509), (3283, 70633), (4067, 57017), (5561, 41699), (5957, 38927), (10787, 21497), (13363, 17353)]