20808530687

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1\times {\mathrm{1429}}^1$

素因数の和:1943

約数の個数: 32

約数和(自身を含む): 24492948480

約数和(自身を除く): 3684417793

約数列:

[1, 7, 71, 83, 353, 497, 581, 1429, 2471, 5893, 10003, 25063, 29299, 41251, 101459, 118607, 175441, 205093, 504437, 710213, 830249, 2080229, 3531059, 8421097, 14561603, 35815027, 41868271, 58947679, 250705189, 293077897, 2972647241, 20808530687]

約数ペア:

[(1, 20808530687), (7, 2972647241), (71, 293077897), (83, 250705189), (353, 58947679), (497, 41868271), (581, 35815027), (1429, 14561603), (2471, 8421097), (5893, 3531059), (10003, 2080229), (25063, 830249), (29299, 710213), (41251, 504437), (101459, 205093), (118607, 175441)]