21593396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 21383692

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 101, 113, 172, 202, 226, 404, 452, 473, 946, 1111, 1243, 1892, 2222, 2486, 4343, 4444, 4859, 4972, 8686, 9718, 11413, 17372, 19436, 22826, 45652, 47773, 53449, 95546, 106898, 125543, 191092, 213796, 251086, 490759, 502172, 981518, 1963036, 5398349, 10796698, 21593396]

約数ペア:

[(1, 21593396), (2, 10796698), (4, 5398349), (11, 1963036), (22, 981518), (43, 502172), (44, 490759), (86, 251086), (101, 213796), (113, 191092), (172, 125543), (202, 106898), (226, 95546), (404, 53449), (452, 47773), (473, 45652), (946, 22826), (1111, 19436), (1243, 17372), (1892, 11413), (2222, 9718), (2486, 8686), (4343, 4972), (4444, 4859)]