20954528

素因数分解:

$2^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{673}}^1$

素因数の和:829

約数の個数: 48

約数和(自身を含む): 47557440

約数和(自身を除く): 26602912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 139, 224, 278, 556, 673, 973, 1112, 1346, 1946, 2224, 2692, 3892, 4448, 4711, 5384, 7784, 9422, 10768, 15568, 18844, 21536, 31136, 37688, 75376, 93547, 150752, 187094, 374188, 654829, 748376, 1309658, 1496752, 2619316, 2993504, 5238632, 10477264, 20954528]

約数ペア:

[(1, 20954528), (2, 10477264), (4, 5238632), (7, 2993504), (8, 2619316), (14, 1496752), (16, 1309658), (28, 748376), (32, 654829), (56, 374188), (112, 187094), (139, 150752), (224, 93547), (278, 75376), (556, 37688), (673, 31136), (973, 21536), (1112, 18844), (1346, 15568), (1946, 10768), (2224, 9422), (2692, 7784), (3892, 5384), (4448, 4711)]