19966518

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7757}}^1$

素因数の和:7789

約数の個数: 48

約数和(自身を含む): 50830416

約数和(自身を除く): 30863898

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 143, 198, 234, 286, 429, 858, 1287, 2574, 7757, 15514, 23271, 46542, 69813, 85327, 100841, 139626, 170654, 201682, 255981, 302523, 511962, 605046, 767943, 907569, 1109251, 1535886, 1815138, 2218502, 3327753, 6655506, 9983259, 19966518]

約数ペア:

[(1, 19966518), (2, 9983259), (3, 6655506), (6, 3327753), (9, 2218502), (11, 1815138), (13, 1535886), (18, 1109251), (22, 907569), (26, 767943), (33, 605046), (39, 511962), (66, 302523), (78, 255981), (99, 201682), (117, 170654), (143, 139626), (198, 100841), (234, 85327), (286, 69813), (429, 46542), (858, 23271), (1287, 15514), (2574, 7757)]