21048555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11597}}^1$

素因数の和:11627

約数の個数: 24

約数和(自身を含む): 37020816

約数和(自身を除く): 15972261

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 11597, 34791, 57985, 127567, 173955, 382701, 637835, 1403237, 1913505, 4209711, 7016185, 21048555]

約数ペア:

[(1, 21048555), (3, 7016185), (5, 4209711), (11, 1913505), (15, 1403237), (33, 637835), (55, 382701), (121, 173955), (165, 127567), (363, 57985), (605, 34791), (1815, 11597)]