21264704

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7727}}^1$

素因数の和:7782

約数の個数: 28

約数和(自身を含む): 43184064

約数和(自身を除く): 21919360

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7727, 15454, 30908, 61816, 123632, 247264, 332261, 494528, 664522, 1329044, 2658088, 5316176, 10632352, 21264704]

約数ペア:

[(1, 21264704), (2, 10632352), (4, 5316176), (8, 2658088), (16, 1329044), (32, 664522), (43, 494528), (64, 332261), (86, 247264), (172, 123632), (344, 61816), (688, 30908), (1376, 15454), (2752, 7727)]