21415899

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1109}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 29463840

約数和(自身を除く): 8047941

約数列:

[1, 3, 41, 123, 157, 471, 1109, 3327, 6437, 19311, 45469, 136407, 174113, 522339, 7138633, 21415899]

約数ペア:

[(1, 21415899), (3, 7138633), (41, 522339), (123, 174113), (157, 136407), (471, 45469), (1109, 19311), (3327, 6437)]