1972789

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 2617440

約数和(自身を除く): 644651

約数列:

[1, 7, 13, 19, 49, 91, 133, 163, 247, 637, 931, 1141, 1729, 2119, 3097, 7987, 12103, 14833, 21679, 40261, 103831, 151753, 281827, 1972789]

約数ペア:

[(1, 1972789), (7, 281827), (13, 151753), (19, 103831), (49, 40261), (91, 21679), (133, 14833), (163, 12103), (247, 7987), (637, 3097), (931, 2119), (1141, 1729)]