21000279708

素因数分解:

$2^2\times 3^2\times {\mathrm{2837}}^1\times {\mathrm{205619}}^1$

素因数の和:208466

約数の個数: 36

約数和(自身を含む): 53103009960

約数和(自身を除く): 32102730252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 2837, 5674, 8511, 11348, 17022, 25533, 34044, 51066, 102132, 205619, 411238, 616857, 822476, 1233714, 1850571, 2467428, 3701142, 7402284, 583341103, 1166682206, 1750023309, 2333364412, 3500046618, 5250069927, 7000093236, 10500139854, 21000279708]

約数ペア:

[(1, 21000279708), (2, 10500139854), (3, 7000093236), (4, 5250069927), (6, 3500046618), (9, 2333364412), (12, 1750023309), (18, 1166682206), (36, 583341103), (2837, 7402284), (5674, 3701142), (8511, 2467428), (11348, 1850571), (17022, 1233714), (25533, 822476), (34044, 616857), (51066, 411238), (102132, 205619)]