21046864

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16651}}^1$

素因数の和:16738

約数の個数: 20

約数和(自身を含む): 41296960

約数和(自身を除く): 20250096

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16651, 33302, 66604, 133208, 266416, 1315429, 2630858, 5261716, 10523432, 21046864]

約数ペア:

[(1, 21046864), (2, 10523432), (4, 5261716), (8, 2630858), (16, 1315429), (79, 266416), (158, 133208), (316, 66604), (632, 33302), (1264, 16651)]