21271918

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9839}}^1$

素因数の和:9911

約数の個数: 16

約数和(自身を含む): 34007040

約数和(自身を除く): 12735122

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9839, 19678, 226297, 452594, 462433, 924866, 10635959, 21271918]

約数ペア:

[(1, 21271918), (2, 10635959), (23, 924866), (46, 462433), (47, 452594), (94, 226297), (1081, 19678), (2162, 9839)]