638299473

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1\times {\mathrm{1361}}^1$

素因数の和:2365

約数の個数: 32

約数和(自身を含む): 1016727552

約数和(自身を除く): 378428079

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 971, 1361, 2913, 4083, 6797, 9527, 20391, 22333, 28581, 31303, 66999, 93909, 156331, 219121, 468993, 657363, 1321531, 3964593, 9250717, 27752151, 30395213, 91185639, 212766491, 638299473]

約数ペア:

[(1, 638299473), (3, 212766491), (7, 91185639), (21, 30395213), (23, 27752151), (69, 9250717), (161, 3964593), (483, 1321531), (971, 657363), (1361, 468993), (2913, 219121), (4083, 156331), (6797, 93909), (9527, 66999), (20391, 31303), (22333, 28581)]