21745906

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^3\times {\mathrm{101}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 41511960

約数和(自身を除く): 19766054

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 101, 169, 182, 202, 338, 637, 707, 1183, 1274, 1313, 1414, 2197, 2366, 2626, 4394, 4949, 8281, 9191, 9898, 15379, 16562, 17069, 18382, 30758, 34138, 64337, 107653, 119483, 128674, 215306, 221897, 238966, 443794, 836381, 1553279, 1672762, 3106558, 10872953, 21745906]

約数ペア:

[(1, 21745906), (2, 10872953), (7, 3106558), (13, 1672762), (14, 1553279), (26, 836381), (49, 443794), (91, 238966), (98, 221897), (101, 215306), (169, 128674), (182, 119483), (202, 107653), (338, 64337), (637, 34138), (707, 30758), (1183, 18382), (1274, 17069), (1313, 16562), (1414, 15379), (2197, 9898), (2366, 9191), (2626, 8281), (4394, 4949)]