207980451

素因数分解:

$3^2\times 7^3\times {\mathrm{89}}^1\times {\mathrm{757}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 354744000

約数和(自身を除く): 146763549

約数列:

[1, 3, 7, 9, 21, 49, 63, 89, 147, 267, 343, 441, 623, 757, 801, 1029, 1869, 2271, 3087, 4361, 5299, 5607, 6813, 13083, 15897, 30527, 37093, 39249, 47691, 67373, 91581, 111279, 202119, 259651, 274743, 333837, 471611, 606357, 778953, 1414833, 2336859, 3301277, 4244499, 9903831, 23108939, 29711493, 69326817, 207980451]

約数ペア:

[(1, 207980451), (3, 69326817), (7, 29711493), (9, 23108939), (21, 9903831), (49, 4244499), (63, 3301277), (89, 2336859), (147, 1414833), (267, 778953), (343, 606357), (441, 471611), (623, 333837), (757, 274743), (801, 259651), (1029, 202119), (1869, 111279), (2271, 91581), (3087, 67373), (4361, 47691), (5299, 39249), (5607, 37093), (6813, 30527), (13083, 15897)]