1990770418

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{206383}}^1$

素因数の和:206458

約数の個数: 32

約数和(自身を含む): 3744631296

約数和(自身を除く): 1753860878

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 106, 182, 371, 689, 742, 1378, 4823, 9646, 206383, 412766, 1444681, 2682979, 2889362, 5365958, 10938299, 18780853, 21876598, 37561706, 76568093, 142197887, 153136186, 284395774, 995385209, 1990770418]

約数ペア:

[(1, 1990770418), (2, 995385209), (7, 284395774), (13, 153136186), (14, 142197887), (26, 76568093), (53, 37561706), (91, 21876598), (106, 18780853), (182, 10938299), (371, 5365958), (689, 2889362), (742, 2682979), (1378, 1444681), (4823, 412766), (9646, 206383)]