20740244

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12143}}^1$

素因数の和:12215

約数の個数: 24

約数和(自身を含む): 42163968

約数和(自身を除く): 21423724

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12143, 24286, 48572, 85001, 170002, 340004, 740723, 1481446, 2962892, 5185061, 10370122, 20740244]

約数ペア:

[(1, 20740244), (2, 10370122), (4, 5185061), (7, 2962892), (14, 1481446), (28, 740723), (61, 340004), (122, 170002), (244, 85001), (427, 48572), (854, 24286), (1708, 12143)]