26987653

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 9404027

約数列:

[1, 7, 11, 17, 53, 77, 119, 187, 371, 389, 583, 901, 1309, 2723, 4081, 4279, 6307, 6613, 9911, 20617, 29953, 46291, 69377, 72743, 144319, 226787, 350489, 509201, 1587509, 2453423, 3855379, 26987653]

約数ペア:

[(1, 26987653), (7, 3855379), (11, 2453423), (17, 1587509), (53, 509201), (77, 350489), (119, 226787), (187, 144319), (371, 72743), (389, 69377), (583, 46291), (901, 29953), (1309, 20617), (2723, 9911), (4081, 6613), (4279, 6307)]