21058336

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{227}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 23987168

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 223, 227, 416, 446, 454, 892, 908, 1784, 1816, 2899, 2951, 3568, 3632, 5798, 5902, 7136, 7264, 11596, 11804, 23192, 23608, 46384, 47216, 50621, 92768, 94432, 101242, 202484, 404968, 658073, 809936, 1316146, 1619872, 2632292, 5264584, 10529168, 21058336]

約数ペア:

[(1, 21058336), (2, 10529168), (4, 5264584), (8, 2632292), (13, 1619872), (16, 1316146), (26, 809936), (32, 658073), (52, 404968), (104, 202484), (208, 101242), (223, 94432), (227, 92768), (416, 50621), (446, 47216), (454, 46384), (892, 23608), (908, 23192), (1784, 11804), (1816, 11596), (2899, 7264), (2951, 7136), (3568, 5902), (3632, 5798)]