21748899

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1699}}^1$

素因数の和:1970

約数の個数: 16

約数和(自身を含む): 30844800

約数和(自身を除く): 9095901

約数列:

[1, 3, 17, 51, 251, 753, 1699, 4267, 5097, 12801, 28883, 86649, 426449, 1279347, 7249633, 21748899]

約数ペア:

[(1, 21748899), (3, 7249633), (17, 1279347), (51, 426449), (251, 86649), (753, 28883), (1699, 12801), (4267, 5097)]