128529681

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{947}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 205314048

約数和(自身を除く): 76784367

約数列:

[1, 3, 7, 21, 23, 69, 161, 281, 483, 843, 947, 1967, 2841, 5901, 6463, 6629, 19389, 19887, 21781, 45241, 65343, 135723, 152467, 266107, 457401, 798321, 1862749, 5588247, 6120461, 18361383, 42843227, 128529681]

約数ペア:

[(1, 128529681), (3, 42843227), (7, 18361383), (21, 6120461), (23, 5588247), (69, 1862749), (161, 798321), (281, 457401), (483, 266107), (843, 152467), (947, 135723), (1967, 65343), (2841, 45241), (5901, 21781), (6463, 19887), (6629, 19389)]