221760639

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4999}}^1$

素因数の和:5092

約数の個数: 32

約数和(自身を含む): 345600000

約数和(自身を除く): 123839361

約数列:

[1, 3, 9, 27, 31, 53, 93, 159, 279, 477, 837, 1431, 1643, 4929, 4999, 14787, 14997, 44361, 44991, 134973, 154969, 264947, 464907, 794841, 1394721, 2384523, 4184163, 7153569, 8213357, 24640071, 73920213, 221760639]

約数ペア:

[(1, 221760639), (3, 73920213), (9, 24640071), (27, 8213357), (31, 7153569), (53, 4184163), (93, 2384523), (159, 1394721), (279, 794841), (477, 464907), (837, 264947), (1431, 154969), (1643, 134973), (4929, 44991), (4999, 44361), (14787, 14997)]