20005821969

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8005531}}^1$

素因数の和:8005565

約数の個数: 24

約数和(自身を含む): 32854703328

約数和(自身を除く): 12848881359

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8005531, 24016593, 56038717, 136094027, 168116151, 392271019, 408282081, 952658189, 1176813057, 2857974567, 6668607323, 20005821969]

約数ペア:

[(1, 20005821969), (3, 6668607323), (7, 2857974567), (17, 1176813057), (21, 952658189), (49, 408282081), (51, 392271019), (119, 168116151), (147, 136094027), (357, 56038717), (833, 24016593), (2499, 8005531)]