251158761

素因数分解:

$3^2\times 7^2\times {\mathrm{383}}^1\times {\mathrm{1487}}^1$

素因数の和:1890

約数の個数: 36

約数和(自身を含む): 423401472

約数和(自身を除く): 172242711

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 383, 441, 1149, 1487, 2681, 3447, 4461, 8043, 10409, 13383, 18767, 24129, 31227, 56301, 72863, 93681, 168903, 218589, 569521, 655767, 1708563, 3986647, 5125689, 11959941, 27906529, 35879823, 83719587, 251158761]

約数ペア:

[(1, 251158761), (3, 83719587), (7, 35879823), (9, 27906529), (21, 11959941), (49, 5125689), (63, 3986647), (147, 1708563), (383, 655767), (441, 569521), (1149, 218589), (1487, 168903), (2681, 93681), (3447, 72863), (4461, 56301), (8043, 31227), (10409, 24129), (13383, 18767)]