81737487

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 135757440

約数和(自身を除く): 54019953

約数列:

[1, 3, 9, 13, 19, 39, 57, 83, 117, 171, 247, 249, 443, 741, 747, 1079, 1329, 1577, 2223, 3237, 3987, 4731, 5759, 8417, 9711, 14193, 17277, 20501, 25251, 36769, 51831, 61503, 75753, 109421, 110307, 184509, 328263, 330921, 477997, 698611, 984789, 1433991, 2095833, 4301973, 6287499, 9081943, 27245829, 81737487]

約数ペア:

[(1, 81737487), (3, 27245829), (9, 9081943), (13, 6287499), (19, 4301973), (39, 2095833), (57, 1433991), (83, 984789), (117, 698611), (171, 477997), (247, 330921), (249, 328263), (443, 184509), (741, 110307), (747, 109421), (1079, 75753), (1329, 61503), (1577, 51831), (2223, 36769), (3237, 25251), (3987, 20501), (4731, 17277), (5759, 14193), (8417, 9711)]