21641942

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67211}}^1$

素因数の和:67243

約数の個数: 16

約数和(自身を含む): 38714112

約数和(自身を除く): 17072170

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67211, 134422, 470477, 940954, 1545853, 3091706, 10820971, 21641942]

約数ペア:

[(1, 21641942), (2, 10820971), (7, 3091706), (14, 1545853), (23, 940954), (46, 470477), (161, 134422), (322, 67211)]