19949368

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 38885760

約数和(自身を除く): 18936392

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 257, 313, 514, 626, 1028, 1252, 2056, 2504, 7967, 9703, 15934, 19406, 31868, 38812, 63736, 77624, 80441, 160882, 321764, 643528, 2493671, 4987342, 9974684, 19949368]

約数ペア:

[(1, 19949368), (2, 9974684), (4, 4987342), (8, 2493671), (31, 643528), (62, 321764), (124, 160882), (248, 80441), (257, 77624), (313, 63736), (514, 38812), (626, 31868), (1028, 19406), (1252, 15934), (2056, 9703), (2504, 7967)]