2581866

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 6609408

約数和(自身を除く): 4027542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 661, 1302, 1322, 1953, 1983, 3906, 3966, 4627, 5949, 9254, 11898, 13881, 20491, 27762, 40982, 41643, 61473, 83286, 122946, 143437, 184419, 286874, 368838, 430311, 860622, 1290933, 2581866]

約数ペア:

[(1, 2581866), (2, 1290933), (3, 860622), (6, 430311), (7, 368838), (9, 286874), (14, 184419), (18, 143437), (21, 122946), (31, 83286), (42, 61473), (62, 41643), (63, 40982), (93, 27762), (126, 20491), (186, 13881), (217, 11898), (279, 9254), (434, 5949), (558, 4627), (651, 3966), (661, 3906), (1302, 1983), (1322, 1953)]