21861136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:799

約数の個数: 40

約数和(自身を含む): 46497024

約数和(自身を除く): 24635888

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 223, 446, 557, 892, 1114, 1784, 2228, 2453, 3568, 4456, 4906, 6127, 8912, 9812, 12254, 19624, 24508, 39248, 49016, 98032, 124211, 248422, 496844, 993688, 1366321, 1987376, 2732642, 5465284, 10930568, 21861136]

約数ペア:

[(1, 21861136), (2, 10930568), (4, 5465284), (8, 2732642), (11, 1987376), (16, 1366321), (22, 993688), (44, 496844), (88, 248422), (176, 124211), (223, 98032), (446, 49016), (557, 39248), (892, 24508), (1114, 19624), (1784, 12254), (2228, 9812), (2453, 8912), (3568, 6127), (4456, 4906)]