81870138

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{661}}^1\times {\mathrm{983}}^1$

素因数の和:1659

約数の個数: 48

約数和(自身を含む): 203239296

約数和(自身を除く): 121369158

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 661, 983, 1322, 1966, 1983, 2949, 3966, 4627, 5898, 5949, 6881, 8847, 9254, 11898, 13762, 13881, 17694, 20643, 27762, 41286, 41643, 61929, 83286, 123858, 649763, 1299526, 1949289, 3898578, 4548341, 5847867, 9096682, 11695734, 13645023, 27290046, 40935069, 81870138]

約数ペア:

[(1, 81870138), (2, 40935069), (3, 27290046), (6, 13645023), (7, 11695734), (9, 9096682), (14, 5847867), (18, 4548341), (21, 3898578), (42, 1949289), (63, 1299526), (126, 649763), (661, 123858), (983, 83286), (1322, 61929), (1966, 41643), (1983, 41286), (2949, 27762), (3966, 20643), (4627, 17694), (5898, 13881), (5949, 13762), (6881, 11898), (8847, 9254)]