21087038

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2161}}^1$

素因数の和:2228

約数の個数: 32

約数和(自身を含む): 39227328

約数和(自身を除く): 18140290

約数列:

[1, 2, 7, 14, 17, 34, 41, 82, 119, 238, 287, 574, 697, 1394, 2161, 4322, 4879, 9758, 15127, 30254, 36737, 73474, 88601, 177202, 257159, 514318, 620207, 1240414, 1506217, 3012434, 10543519, 21087038]

約数ペア:

[(1, 21087038), (2, 10543519), (7, 3012434), (14, 1506217), (17, 1240414), (34, 620207), (41, 514318), (82, 257159), (119, 177202), (238, 88601), (287, 73474), (574, 36737), (697, 30254), (1394, 15127), (2161, 9758), (4322, 4879)]