281439291

素因数分解:

$3^1\times 7^2\times {\mathrm{1291}}^1\times {\mathrm{1483}}^1$

素因数の和:2791

約数の個数: 24

約数和(自身を含む): 437150784

約数和(自身を除く): 155711493

約数列:

[1, 3, 7, 21, 49, 147, 1291, 1483, 3873, 4449, 9037, 10381, 27111, 31143, 63259, 72667, 189777, 218001, 1914553, 5743659, 13401871, 40205613, 93813097, 281439291]

約数ペア:

[(1, 281439291), (3, 93813097), (7, 40205613), (21, 13401871), (49, 5743659), (147, 1914553), (1291, 218001), (1483, 189777), (3873, 72667), (4449, 63259), (9037, 31143), (10381, 27111)]