21249760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18973}}^1$

素因数の和:18995

約数の個数: 48

約数和(自身を含む): 57377376

約数和(自身を除く): 36127616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18973, 37946, 75892, 94865, 132811, 151784, 189730, 265622, 303568, 379460, 531244, 607136, 664055, 758920, 1062488, 1328110, 1517840, 2124976, 2656220, 3035680, 4249952, 5312440, 10624880, 21249760]

約数ペア:

[(1, 21249760), (2, 10624880), (4, 5312440), (5, 4249952), (7, 3035680), (8, 2656220), (10, 2124976), (14, 1517840), (16, 1328110), (20, 1062488), (28, 758920), (32, 664055), (35, 607136), (40, 531244), (56, 379460), (70, 303568), (80, 265622), (112, 189730), (140, 151784), (160, 132811), (224, 94865), (280, 75892), (560, 37946), (1120, 18973)]