200920209

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{2203}}^1$

素因数の和:2357

約数の個数: 32

約数和(自身を含む): 316529664

約数和(自身を除く): 115609455

約数列:

[1, 3, 7, 21, 43, 101, 129, 301, 303, 707, 903, 2121, 2203, 4343, 6609, 13029, 15421, 30401, 46263, 91203, 94729, 222503, 284187, 663103, 667509, 1557521, 1989309, 4672563, 9567629, 28702887, 66973403, 200920209]

約数ペア:

[(1, 200920209), (3, 66973403), (7, 28702887), (21, 9567629), (43, 4672563), (101, 1989309), (129, 1557521), (301, 667509), (303, 663103), (707, 284187), (903, 222503), (2121, 94729), (2203, 91203), (4343, 46263), (6609, 30401), (13029, 15421)]