21306796

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24547}}^1$

素因数の和:24589

約数の個数: 24

約数和(自身を含む): 43990016

約数和(自身を除く): 22683220

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24547, 49094, 98188, 171829, 343658, 687316, 760957, 1521914, 3043828, 5326699, 10653398, 21306796]

約数ペア:

[(1, 21306796), (2, 10653398), (4, 5326699), (7, 3043828), (14, 1521914), (28, 760957), (31, 687316), (62, 343658), (124, 171829), (217, 98188), (434, 49094), (868, 24547)]