21894964

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 54

約数和(自身を含む): 48337254

約数和(自身を除く): 26442290

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 637, 661, 676, 1183, 1274, 1322, 2366, 2548, 2644, 4627, 4732, 8281, 8593, 9254, 16562, 17186, 18508, 32389, 33124, 34372, 60151, 64778, 111709, 120302, 129556, 223418, 240604, 421057, 446836, 781963, 842114, 1563926, 1684228, 3127852, 5473741, 10947482, 21894964]

約数ペア:

[(1, 21894964), (2, 10947482), (4, 5473741), (7, 3127852), (13, 1684228), (14, 1563926), (26, 842114), (28, 781963), (49, 446836), (52, 421057), (91, 240604), (98, 223418), (169, 129556), (182, 120302), (196, 111709), (338, 64778), (364, 60151), (637, 34372), (661, 33124), (676, 32389), (1183, 18508), (1274, 17186), (1322, 16562), (2366, 9254), (2548, 8593), (2644, 8281), (4627, 4732)]