21638055

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3301}}^1$

素因数の和:3351

約数の個数: 32

約数和(自身を含む): 38039040

約数和(自身を除く): 16400985

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3301, 6555, 9903, 16505, 49515, 62719, 75923, 188157, 227769, 313595, 379615, 940785, 1138845, 1442537, 4327611, 7212685, 21638055]

約数ペア:

[(1, 21638055), (3, 7212685), (5, 4327611), (15, 1442537), (19, 1138845), (23, 940785), (57, 379615), (69, 313595), (95, 227769), (115, 188157), (285, 75923), (345, 62719), (437, 49515), (1311, 16505), (2185, 9903), (3301, 6555)]