21989137

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1096

約数の個数: 16

約数和(自身を含む): 24563200

約数和(自身を除く): 2574063

約数列:

[1, 19, 31, 37, 589, 703, 1009, 1147, 19171, 21793, 31279, 37333, 594301, 709327, 1157323, 21989137]

約数ペア:

[(1, 21989137), (19, 1157323), (31, 709327), (37, 594301), (589, 37333), (703, 31279), (1009, 21793), (1147, 19171)]