18218473

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 24272640

約数和(自身を除く): 6054167

約数列:

[1, 7, 13, 19, 41, 91, 133, 247, 257, 287, 533, 779, 1729, 1799, 3341, 3731, 4883, 5453, 10127, 10537, 23387, 34181, 63479, 70889, 73759, 136981, 200203, 444353, 958867, 1401421, 2602639, 18218473]

約数ペア:

[(1, 18218473), (7, 2602639), (13, 1401421), (19, 958867), (41, 444353), (91, 200203), (133, 136981), (247, 73759), (257, 70889), (287, 63479), (533, 34181), (779, 23387), (1729, 10537), (1799, 10127), (3341, 5453), (3731, 4883)]