21271210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1789}}^1$

素因数の和:1866

約数の個数: 32

約数和(自身を含む): 40597200

約数和(自身を除く): 19325990

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 1189, 1789, 2378, 3578, 5945, 8945, 11890, 17890, 51881, 73349, 103762, 146698, 259405, 366745, 518810, 733490, 2127121, 4254242, 10635605, 21271210]

約数ペア:

[(1, 21271210), (2, 10635605), (5, 4254242), (10, 2127121), (29, 733490), (41, 518810), (58, 366745), (82, 259405), (145, 146698), (205, 103762), (290, 73349), (410, 51881), (1189, 17890), (1789, 11890), (2378, 8945), (3578, 5945)]