21064895

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{1621}}^1$

素因数の和:1762

約数の個数: 16

約数和(自身を含む): 26626752

約数和(自身を除く): 5561857

約数列:

[1, 5, 23, 113, 115, 565, 1621, 2599, 8105, 12995, 37283, 183173, 186415, 915865, 4212979, 21064895]

約数ペア:

[(1, 21064895), (5, 4212979), (23, 915865), (113, 186415), (115, 183173), (565, 37283), (1621, 12995), (2599, 8105)]