30991226

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{4003}}^1$

素因数の和:4098

約数の個数: 24

約数和(自身を含む): 54774720

約数和(自身を除く): 23783494

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 3871, 4003, 7742, 8006, 28021, 56042, 196147, 316237, 392294, 632474, 2213659, 4427318, 15495613, 30991226]

約数ペア:

[(1, 30991226), (2, 15495613), (7, 4427318), (14, 2213659), (49, 632474), (79, 392294), (98, 316237), (158, 196147), (553, 56042), (1106, 28021), (3871, 8006), (4003, 7742)]