21612516

素因数分解:

$2^2\times 3^1\times {\mathrm{643}}^1\times {\mathrm{2801}}^1$

素因数の和:3451

約数の個数: 24

約数和(自身を含む): 50525664

約数和(自身を除く): 28913148

約数列:

[1, 2, 3, 4, 6, 12, 643, 1286, 1929, 2572, 2801, 3858, 5602, 7716, 8403, 11204, 16806, 33612, 1801043, 3602086, 5403129, 7204172, 10806258, 21612516]

約数ペア:

[(1, 21612516), (2, 10806258), (3, 7204172), (4, 5403129), (6, 3602086), (12, 1801043), (643, 33612), (1286, 16806), (1929, 11204), (2572, 8403), (2801, 7716), (3858, 5602)]