21041613

素因数分解:

$3^5\times {\mathrm{131}}^1\times {\mathrm{661}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 31807776

約数和(自身を除く): 10766163

約数列:

[1, 3, 9, 27, 81, 131, 243, 393, 661, 1179, 1983, 3537, 5949, 10611, 17847, 31833, 53541, 86591, 160623, 259773, 779319, 2337957, 7013871, 21041613]

約数ペア:

[(1, 21041613), (3, 7013871), (9, 2337957), (27, 779319), (81, 259773), (131, 160623), (243, 86591), (393, 53541), (661, 31833), (1179, 17847), (1983, 10611), (3537, 5949)]