21206844

素因数分解:

$2^2\times 3^2\times {\mathrm{641}}^1\times {\mathrm{919}}^1$

素因数の和:1570

約数の個数: 36

約数和(自身を含む): 53748240

約数和(自身を除く): 32541396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 641, 919, 1282, 1838, 1923, 2564, 2757, 3676, 3846, 5514, 5769, 7692, 8271, 11028, 11538, 16542, 23076, 33084, 589079, 1178158, 1767237, 2356316, 3534474, 5301711, 7068948, 10603422, 21206844]

約数ペア:

[(1, 21206844), (2, 10603422), (3, 7068948), (4, 5301711), (6, 3534474), (9, 2356316), (12, 1767237), (18, 1178158), (36, 589079), (641, 33084), (919, 23076), (1282, 16542), (1838, 11538), (1923, 11028), (2564, 8271), (2757, 7692), (3676, 5769), (3846, 5514)]