216099009

素因数分解:

$3^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3001}}^1$

素因数の和:3147

約数の個数: 40

約数和(自身を含む): 371959808

約数和(自身を除く): 155860799

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 127, 189, 381, 567, 889, 1143, 2667, 3001, 3429, 8001, 9003, 10287, 21007, 24003, 27009, 63021, 72009, 81027, 189063, 243081, 381127, 567189, 1143381, 1701567, 2667889, 3430143, 8003667, 10290429, 24011001, 30871287, 72033003, 216099009]

約数ペア:

[(1, 216099009), (3, 72033003), (7, 30871287), (9, 24011001), (21, 10290429), (27, 8003667), (63, 3430143), (81, 2667889), (127, 1701567), (189, 1143381), (381, 567189), (567, 381127), (889, 243081), (1143, 189063), (2667, 81027), (3001, 72009), (3429, 63021), (8001, 27009), (9003, 24003), (10287, 21007)]