18702404

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 39529728

約数和(自身を除く): 20827324

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 113, 161, 226, 257, 322, 452, 514, 644, 791, 1028, 1582, 1799, 2599, 3164, 3598, 5198, 5911, 7196, 10396, 11822, 18193, 23644, 29041, 36386, 41377, 58082, 72772, 82754, 116164, 165508, 203287, 406574, 667943, 813148, 1335886, 2671772, 4675601, 9351202, 18702404]

約数ペア:

[(1, 18702404), (2, 9351202), (4, 4675601), (7, 2671772), (14, 1335886), (23, 813148), (28, 667943), (46, 406574), (92, 203287), (113, 165508), (161, 116164), (226, 82754), (257, 72772), (322, 58082), (452, 41377), (514, 36386), (644, 29041), (791, 23644), (1028, 18193), (1582, 11822), (1799, 10396), (2599, 7196), (3164, 5911), (3598, 5198)]