18197997008

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{821}}^1\times {\mathrm{16691}}^1$

素因数の和:17603

約数の個数: 40

約数和(自身を含む): 35729025696

約数和(自身を除く): 17531028688

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 821, 1328, 1642, 3284, 6568, 13136, 16691, 33382, 66764, 68143, 133528, 136286, 267056, 272572, 545144, 1090288, 1385353, 2770706, 5541412, 11082824, 13703311, 22165648, 27406622, 54813244, 109626488, 219252976, 1137374813, 2274749626, 4549499252, 9098998504, 18197997008]

約数ペア:

[(1, 18197997008), (2, 9098998504), (4, 4549499252), (8, 2274749626), (16, 1137374813), (83, 219252976), (166, 109626488), (332, 54813244), (664, 27406622), (821, 22165648), (1328, 13703311), (1642, 11082824), (3284, 5541412), (6568, 2770706), (13136, 1385353), (16691, 1090288), (33382, 545144), (66764, 272572), (68143, 267056), (133528, 136286)]