21009757377

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3299}}^1\times {\mathrm{17839}}^1$

素因数の和:21165

約数の個数: 32

約数和(自身を含む): 33910272000

約数和(自身を除く): 12900514623

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 3299, 9897, 17839, 23093, 53517, 56083, 69279, 124873, 168249, 303263, 374619, 392581, 909789, 1177743, 2122841, 6368523, 58850861, 176552583, 411956027, 1000464637, 1235868081, 3001393911, 7003252459, 21009757377]

約数ペア:

[(1, 21009757377), (3, 7003252459), (7, 3001393911), (17, 1235868081), (21, 1000464637), (51, 411956027), (119, 176552583), (357, 58850861), (3299, 6368523), (9897, 2122841), (17839, 1177743), (23093, 909789), (53517, 392581), (56083, 374619), (69279, 303263), (124873, 168249)]