21200956

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2879}}^1$

素因数の和:3153

約数の個数: 24

約数和(自身を含む): 42577920

約数和(自身を除く): 21376964

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 2879, 3682, 5758, 7364, 11516, 20153, 40306, 80612, 757177, 1514354, 3028708, 5300239, 10600478, 21200956]

約数ペア:

[(1, 21200956), (2, 10600478), (4, 5300239), (7, 3028708), (14, 1514354), (28, 757177), (263, 80612), (526, 40306), (1052, 20153), (1841, 11516), (2879, 7364), (3682, 5758)]