21377748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1621}}^1$

素因数の和:1792

約数の個数: 48

約数和(自身を含む): 57405824

約数和(自身を除く): 36028076

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 157, 314, 471, 628, 942, 1099, 1621, 1884, 2198, 3242, 3297, 4396, 4863, 6484, 6594, 9726, 11347, 13188, 19452, 22694, 34041, 45388, 68082, 136164, 254497, 508994, 763491, 1017988, 1526982, 1781479, 3053964, 3562958, 5344437, 7125916, 10688874, 21377748]

約数ペア:

[(1, 21377748), (2, 10688874), (3, 7125916), (4, 5344437), (6, 3562958), (7, 3053964), (12, 1781479), (14, 1526982), (21, 1017988), (28, 763491), (42, 508994), (84, 254497), (157, 136164), (314, 68082), (471, 45388), (628, 34041), (942, 22694), (1099, 19452), (1621, 13188), (1884, 11347), (2198, 9726), (3242, 6594), (3297, 6484), (4396, 4863)]