2154971

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 2872800

約数和(自身を除く): 717829

約数列:

[1, 7, 13, 17, 49, 91, 119, 199, 221, 637, 833, 1393, 1547, 2587, 3383, 9751, 10829, 18109, 23681, 43979, 126763, 165767, 307853, 2154971]

約数ペア:

[(1, 2154971), (7, 307853), (13, 165767), (17, 126763), (49, 43979), (91, 23681), (119, 18109), (199, 10829), (221, 9751), (637, 3383), (833, 2587), (1393, 1547)]