21817712

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2347}}^1$

素因数の和:2445

約数の個数: 40

約数和(自身を含む): 48913536

約数和(自身を除く): 27095824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2324, 2347, 4648, 4694, 9296, 9388, 16429, 18776, 32858, 37552, 65716, 131432, 194801, 262864, 389602, 779204, 1363607, 1558408, 2727214, 3116816, 5454428, 10908856, 21817712]

約数ペア:

[(1, 21817712), (2, 10908856), (4, 5454428), (7, 3116816), (8, 2727214), (14, 1558408), (16, 1363607), (28, 779204), (56, 389602), (83, 262864), (112, 194801), (166, 131432), (332, 65716), (581, 37552), (664, 32858), (1162, 18776), (1328, 16429), (2324, 9388), (2347, 9296), (4648, 4694)]