31817121

素因数分解:

$3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{2143}}^1$

素因数の和:2261

約数の個数: 24

約数和(自身を含む): 49860864

約数和(自身を除く): 18043743

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 707, 2121, 2143, 4949, 6429, 14847, 15001, 45003, 105007, 216443, 315021, 649329, 1515101, 4545303, 10605707, 31817121]

約数ペア:

[(1, 31817121), (3, 10605707), (7, 4545303), (21, 1515101), (49, 649329), (101, 315021), (147, 216443), (303, 105007), (707, 45003), (2121, 15001), (2143, 14847), (4949, 6429)]