21691139

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 1947901

約数列:

[1, 23, 37, 71, 359, 851, 1633, 2627, 8257, 13283, 25489, 60421, 305509, 586247, 943093, 21691139]

約数ペア:

[(1, 21691139), (23, 943093), (37, 586247), (71, 305509), (359, 60421), (851, 25489), (1633, 13283), (2627, 8257)]