21903516

素因数分解:

$2^2\times 3^2\times {\mathrm{608431}}^1$

素因数の和:608441

約数の個数: 18

約数和(自身を含む): 55367312

約数和(自身を除く): 33463796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 608431, 1216862, 1825293, 2433724, 3650586, 5475879, 7301172, 10951758, 21903516]

約数ペア:

[(1, 21903516), (2, 10951758), (3, 7301172), (4, 5475879), (6, 3650586), (9, 2433724), (12, 1825293), (18, 1216862), (36, 608431)]