20559028

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3617}}^1$

素因数の和:3664

約数の個数: 36

約数和(自身を含む): 43307460

約数和(自身を除く): 22748432

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3617, 5684, 7234, 14468, 25319, 50638, 101276, 104893, 177233, 209786, 354466, 419572, 708932, 734251, 1468502, 2937004, 5139757, 10279514, 20559028]

約数ペア:

[(1, 20559028), (2, 10279514), (4, 5139757), (7, 2937004), (14, 1468502), (28, 734251), (29, 708932), (49, 419572), (58, 354466), (98, 209786), (116, 177233), (196, 104893), (203, 101276), (406, 50638), (812, 25319), (1421, 14468), (2842, 7234), (3617, 5684)]