21516693

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{4153}}^1$

素因数の和:4324

約数の個数: 16

約数和(自身を含む): 31503936

約数和(自身を除く): 9987243

約数列:

[1, 3, 11, 33, 157, 471, 1727, 4153, 5181, 12459, 45683, 137049, 652021, 1956063, 7172231, 21516693]

約数ペア:

[(1, 21516693), (3, 7172231), (11, 1956063), (33, 652021), (157, 137049), (471, 45683), (1727, 12459), (4153, 5181)]