121891679

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 154828800

約数和(自身を除く): 32937121

約数列:

[1, 7, 13, 53, 91, 127, 199, 371, 689, 889, 1393, 1651, 2587, 4823, 6731, 10547, 11557, 18109, 25273, 47117, 73829, 87503, 137111, 176911, 328549, 612521, 959777, 1339469, 2299843, 9376283, 17413097, 121891679]

約数ペア:

[(1, 121891679), (7, 17413097), (13, 9376283), (53, 2299843), (91, 1339469), (127, 959777), (199, 612521), (371, 328549), (689, 176911), (889, 137111), (1393, 87503), (1651, 73829), (2587, 47117), (4823, 25273), (6731, 18109), (10547, 11557)]