201521383

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 251817984

約数和(自身を除く): 50296601

約数列:

[1, 7, 17, 47, 119, 137, 263, 329, 799, 959, 1841, 2329, 4471, 5593, 6439, 12361, 16303, 31297, 36031, 45073, 86527, 109463, 210137, 252217, 612527, 766241, 1470959, 1693457, 4287689, 11854199, 28788769, 201521383]

約数ペア:

[(1, 201521383), (7, 28788769), (17, 11854199), (47, 4287689), (119, 1693457), (137, 1470959), (263, 766241), (329, 612527), (799, 252217), (959, 210137), (1841, 109463), (2329, 86527), (4471, 45073), (5593, 36031), (6439, 31297), (12361, 16303)]