21348778869

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19604021}}^1$

素因数の和:19604049

約数の個数: 18

約数和(自身を含む): 33895354038

約数和(自身を除く): 12546575169

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19604021, 58812063, 176436189, 215644231, 646932693, 1940798079, 2372086541, 7116259623, 21348778869]

約数ペア:

[(1, 21348778869), (3, 7116259623), (9, 2372086541), (11, 1940798079), (33, 646932693), (99, 215644231), (121, 176436189), (363, 58812063), (1089, 19604021)]