20887845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1783}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 36993024

約数和(自身を除く): 16105179

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 1783, 2343, 3905, 5349, 8915, 11715, 19613, 26745, 58839, 98065, 126593, 294195, 379779, 632965, 1392523, 1898895, 4177569, 6962615, 20887845]

約数ペア:

[(1, 20887845), (3, 6962615), (5, 4177569), (11, 1898895), (15, 1392523), (33, 632965), (55, 379779), (71, 294195), (165, 126593), (213, 98065), (355, 58839), (781, 26745), (1065, 19613), (1783, 11715), (2343, 8915), (3905, 5349)]