21034208

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{857}}^1$

素因数の和:939

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 24371152

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 104, 118, 208, 236, 416, 472, 767, 857, 944, 1534, 1714, 1888, 3068, 3428, 6136, 6856, 11141, 12272, 13712, 22282, 24544, 27424, 44564, 50563, 89128, 101126, 178256, 202252, 356512, 404504, 657319, 809008, 1314638, 1618016, 2629276, 5258552, 10517104, 21034208]

約数ペア:

[(1, 21034208), (2, 10517104), (4, 5258552), (8, 2629276), (13, 1618016), (16, 1314638), (26, 809008), (32, 657319), (52, 404504), (59, 356512), (104, 202252), (118, 178256), (208, 101126), (236, 89128), (416, 50563), (472, 44564), (767, 27424), (857, 24544), (944, 22282), (1534, 13712), (1714, 12272), (1888, 11141), (3068, 6856), (3428, 6136)]