21952240

素因数分解:

$2^4\times 5^1\times {\mathrm{274403}}^1$

素因数の和:274416

約数の個数: 20

約数和(自身を含む): 51039144

約数和(自身を除く): 29086904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274403, 548806, 1097612, 1372015, 2195224, 2744030, 4390448, 5488060, 10976120, 21952240]

約数ペア:

[(1, 21952240), (2, 10976120), (4, 5488060), (5, 4390448), (8, 2744030), (10, 2195224), (16, 1372015), (20, 1097612), (40, 548806), (80, 274403)]