21171774

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3823}}^1$

素因数の和:3912

約数の個数: 32

約数和(自身を含む): 46255104

約数和(自身を除く): 25083330

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3823, 5538, 7646, 11469, 22938, 49699, 99398, 149097, 271433, 298194, 542866, 814299, 1628598, 3528629, 7057258, 10585887, 21171774]

約数ペア:

[(1, 21171774), (2, 10585887), (3, 7057258), (6, 3528629), (13, 1628598), (26, 814299), (39, 542866), (71, 298194), (78, 271433), (142, 149097), (213, 99398), (426, 49699), (923, 22938), (1846, 11469), (2769, 7646), (3823, 5538)]