20211800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{14437}}^1$

素因数の和:14460

約数の個数: 48

約数和(自身を含む): 53709360

約数和(自身を除く): 33497560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 14437, 28874, 57748, 72185, 101059, 115496, 144370, 202118, 288740, 360925, 404236, 505295, 577480, 721850, 808472, 1010590, 1443700, 2021180, 2526475, 2887400, 4042360, 5052950, 10105900, 20211800]

約数ペア:

[(1, 20211800), (2, 10105900), (4, 5052950), (5, 4042360), (7, 2887400), (8, 2526475), (10, 2021180), (14, 1443700), (20, 1010590), (25, 808472), (28, 721850), (35, 577480), (40, 505295), (50, 404236), (56, 360925), (70, 288740), (100, 202118), (140, 144370), (175, 115496), (200, 101059), (280, 72185), (350, 57748), (700, 28874), (1400, 14437)]