21016820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95531}}^1$

素因数の和:95551

約数の個数: 24

約数和(自身を含む): 48148128

約数和(自身を除く): 27131308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95531, 191062, 382124, 477655, 955310, 1050841, 1910620, 2101682, 4203364, 5254205, 10508410, 21016820]

約数ペア:

[(1, 21016820), (2, 10508410), (4, 5254205), (5, 4203364), (10, 2101682), (11, 1910620), (20, 1050841), (22, 955310), (44, 477655), (55, 382124), (110, 191062), (220, 95531)]