18875516

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:746

約数の個数: 36

約数和(自身を含む): 36979320

約数和(自身を除く): 18103804

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 121, 236, 242, 484, 649, 661, 1298, 1322, 2596, 2644, 7139, 7271, 14278, 14542, 28556, 29084, 38999, 77998, 79981, 155996, 159962, 319924, 428989, 857978, 1715956, 4718879, 9437758, 18875516]

約数ペア:

[(1, 18875516), (2, 9437758), (4, 4718879), (11, 1715956), (22, 857978), (44, 428989), (59, 319924), (118, 159962), (121, 155996), (236, 79981), (242, 77998), (484, 38999), (649, 29084), (661, 28556), (1298, 14542), (1322, 14278), (2596, 7271), (2644, 7139)]