639553923

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{70849}}^1$

素因数の和:70931

約数の個数: 24

約数和(自身を含む): 994734000

約数和(自身を除く): 355180077

約数列:

[1, 3, 9, 17, 51, 59, 153, 177, 531, 1003, 3009, 9027, 70849, 212547, 637641, 1204433, 3613299, 4180091, 10839897, 12540273, 37620819, 71061547, 213184641, 639553923]

約数ペア:

[(1, 639553923), (3, 213184641), (9, 71061547), (17, 37620819), (51, 12540273), (59, 10839897), (153, 4180091), (177, 3613299), (531, 1204433), (1003, 637641), (3009, 212547), (9027, 70849)]