21901356

素因数分解:

$2^2\times 3^2\times {\mathrm{608371}}^1$

素因数の和:608381

約数の個数: 18

約数和(自身を含む): 55361852

約数和(自身を除く): 33460496

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 608371, 1216742, 1825113, 2433484, 3650226, 5475339, 7300452, 10950678, 21901356]

約数ペア:

[(1, 21901356), (2, 10950678), (3, 7300452), (4, 5475339), (6, 3650226), (9, 2433484), (12, 1825113), (18, 1216742), (36, 608371)]