21188368

素因数分解:

$2^4\times {\mathrm{821}}^1\times {\mathrm{1613}}^1$

素因数の和:2442

約数の個数: 20

約数和(自身を含む): 41127948

約数和(自身を除く): 19939580

約数列:

[1, 2, 4, 8, 16, 821, 1613, 1642, 3226, 3284, 6452, 6568, 12904, 13136, 25808, 1324273, 2648546, 5297092, 10594184, 21188368]

約数ペア:

[(1, 21188368), (2, 10594184), (4, 5297092), (8, 2648546), (16, 1324273), (821, 25808), (1613, 13136), (1642, 12904), (3226, 6568), (3284, 6452)]