21450121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7529}}^1$

素因数の和:7584

約数の個数: 16

約数和(自身を含む): 27469440

約数和(自身を除く): 6019319

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 7529, 52703, 82819, 278573, 579733, 1950011, 3064303, 21450121]

約数ペア:

[(1, 21450121), (7, 3064303), (11, 1950011), (37, 579733), (77, 278573), (259, 82819), (407, 52703), (2849, 7529)]