21288376

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{26347}}^1$

素因数の和:26454

約数の個数: 16

約数和(自身を含む): 40312440

約数和(自身を除く): 19024064

約数列:

[1, 2, 4, 8, 101, 202, 404, 808, 26347, 52694, 105388, 210776, 2661047, 5322094, 10644188, 21288376]

約数ペア:

[(1, 21288376), (2, 10644188), (4, 5322094), (8, 2661047), (101, 210776), (202, 105388), (404, 52694), (808, 26347)]