21423077

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 4704283

約数列:

[1, 13, 17, 31, 53, 59, 221, 403, 527, 689, 767, 901, 1003, 1643, 1829, 3127, 6851, 11713, 13039, 21359, 23777, 27931, 31093, 40651, 53159, 96937, 363103, 404209, 691067, 1260181, 1647929, 21423077]

約数ペア:

[(1, 21423077), (13, 1647929), (17, 1260181), (31, 691067), (53, 404209), (59, 363103), (221, 96937), (403, 53159), (527, 40651), (689, 31093), (767, 27931), (901, 23777), (1003, 21359), (1643, 13039), (1829, 11713), (3127, 6851)]