28447881

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 48996288

約数和(自身を除く): 20548407

約数列:

[1, 3, 7, 11, 21, 33, 49, 73, 77, 147, 219, 231, 241, 511, 539, 723, 803, 1533, 1617, 1687, 2409, 2651, 3577, 5061, 5621, 7953, 10731, 11809, 16863, 17593, 18557, 35427, 39347, 52779, 55671, 118041, 123151, 129899, 193523, 369453, 389697, 580569, 862057, 1354661, 2586171, 4063983, 9482627, 28447881]

約数ペア:

[(1, 28447881), (3, 9482627), (7, 4063983), (11, 2586171), (21, 1354661), (33, 862057), (49, 580569), (73, 389697), (77, 369453), (147, 193523), (219, 129899), (231, 123151), (241, 118041), (511, 55671), (539, 52779), (723, 39347), (803, 35427), (1533, 18557), (1617, 17593), (1687, 16863), (2409, 11809), (2651, 10731), (3577, 7953), (5061, 5621)]