20974772

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1987}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 46757760

約数和(自身を除く): 25782988

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 1987, 2639, 3974, 5278, 7948, 10556, 13909, 25831, 27818, 51662, 55636, 57623, 103324, 115246, 180817, 230492, 361634, 403361, 723268, 749099, 806722, 1498198, 1613444, 2996396, 5243693, 10487386, 20974772]

約数ペア:

[(1, 20974772), (2, 10487386), (4, 5243693), (7, 2996396), (13, 1613444), (14, 1498198), (26, 806722), (28, 749099), (29, 723268), (52, 403361), (58, 361634), (91, 230492), (116, 180817), (182, 115246), (203, 103324), (364, 57623), (377, 55636), (406, 51662), (754, 27818), (812, 25831), (1508, 13909), (1987, 10556), (2639, 7948), (3974, 5278)]