21348440

素因数分解:

$2^3\times 5^1\times {\mathrm{533711}}^1$

素因数の和:533722

約数の個数: 16

約数和(自身を含む): 48034080

約数和(自身を除く): 26685640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 533711, 1067422, 2134844, 2668555, 4269688, 5337110, 10674220, 21348440]

約数ペア:

[(1, 21348440), (2, 10674220), (4, 5337110), (5, 4269688), (8, 2668555), (10, 2134844), (20, 1067422), (40, 533711)]