21481905

素因数分解:

$3^1\times 5^1\times {\mathrm{967}}^1\times {\mathrm{1481}}^1$

素因数の和:2456

約数の個数: 16

約数和(自身を含む): 34429824

約数和(自身を除く): 12947919

約数列:

[1, 3, 5, 15, 967, 1481, 2901, 4443, 4835, 7405, 14505, 22215, 1432127, 4296381, 7160635, 21481905]

約数ペア:

[(1, 21481905), (3, 7160635), (5, 4296381), (15, 1432127), (967, 22215), (1481, 14505), (2901, 7405), (4443, 4835)]