21043365

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11789}}^1$

素因数の和:11821

約数の個数: 32

約数和(自身を含む): 40746240

約数和(自身を除く): 19702875

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 11789, 35367, 58945, 82523, 176835, 200413, 247569, 412615, 601239, 1002065, 1237845, 1402891, 3006195, 4208673, 7014455, 21043365]

約数ペア:

[(1, 21043365), (3, 7014455), (5, 4208673), (7, 3006195), (15, 1402891), (17, 1237845), (21, 1002065), (35, 601239), (51, 412615), (85, 247569), (105, 200413), (119, 176835), (255, 82523), (357, 58945), (595, 35367), (1785, 11789)]