20395886

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^2$

素因数の和:185

約数の個数: 36

約数和(自身を含む): 37672584

約数和(自身を除く): 17276698

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 289, 497, 578, 994, 1207, 2023, 2414, 4046, 5041, 8449, 10082, 16898, 20519, 35287, 41038, 70574, 85697, 143633, 171394, 287266, 599879, 1199758, 1456849, 2913698, 10197943, 20395886]

約数ペア:

[(1, 20395886), (2, 10197943), (7, 2913698), (14, 1456849), (17, 1199758), (34, 599879), (71, 287266), (119, 171394), (142, 143633), (238, 85697), (289, 70574), (497, 41038), (578, 35287), (994, 20519), (1207, 16898), (2023, 10082), (2414, 8449), (4046, 5041)]