21162615

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 35500032

約数和(自身を除く): 14337417

約数列:

[1, 3, 5, 15, 31, 71, 93, 155, 213, 355, 465, 641, 1065, 1923, 2201, 3205, 6603, 9615, 11005, 19871, 33015, 45511, 59613, 99355, 136533, 227555, 298065, 682665, 1410841, 4232523, 7054205, 21162615]

約数ペア:

[(1, 21162615), (3, 7054205), (5, 4232523), (15, 1410841), (31, 682665), (71, 298065), (93, 227555), (155, 136533), (213, 99355), (355, 59613), (465, 45511), (641, 33015), (1065, 19871), (1923, 11005), (2201, 9615), (3205, 6603)]