21615692

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 46663680

約数和(自身を除く): 25047988

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 532, 574, 779, 991, 1148, 1558, 1982, 3116, 3964, 5453, 6937, 10906, 13874, 18829, 21812, 27748, 37658, 40631, 75316, 81262, 131803, 162524, 263606, 284417, 527212, 568834, 771989, 1137668, 1543978, 3087956, 5403923, 10807846, 21615692]

約数ペア:

[(1, 21615692), (2, 10807846), (4, 5403923), (7, 3087956), (14, 1543978), (19, 1137668), (28, 771989), (38, 568834), (41, 527212), (76, 284417), (82, 263606), (133, 162524), (164, 131803), (266, 81262), (287, 75316), (532, 40631), (574, 37658), (779, 27748), (991, 21812), (1148, 18829), (1558, 13874), (1982, 10906), (3116, 6937), (3964, 5453)]