21238706

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{1163}}^1$

素因数の和:1585

約数の個数: 16

約数和(自身を含む): 33355584

約数和(自身を除く): 12116878

約数列:

[1, 2, 23, 46, 397, 794, 1163, 2326, 9131, 18262, 26749, 53498, 461711, 923422, 10619353, 21238706]

約数ペア:

[(1, 21238706), (2, 10619353), (23, 923422), (46, 461711), (397, 53498), (794, 26749), (1163, 18262), (2326, 9131)]