21274319

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 24641280

約数和(自身を除く): 3366961

約数列:

[1, 11, 19, 137, 209, 743, 1507, 2603, 8173, 14117, 28633, 101791, 155287, 1119701, 1934029, 21274319]

約数ペア:

[(1, 21274319), (11, 1934029), (19, 1119701), (137, 155287), (209, 101791), (743, 28633), (1507, 14117), (2603, 8173)]