201615561

素因数分解:

$3^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4871}}^1$

素因数の和:4963

約数の個数: 40

約数和(自身を含む): 348991104

約数和(自身を除く): 147375543

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 81, 189, 219, 511, 567, 657, 1533, 1971, 4599, 4871, 5913, 13797, 14613, 34097, 41391, 43839, 102291, 131517, 306873, 355583, 394551, 920619, 1066749, 2489081, 2761857, 3200247, 7467243, 9600741, 22401729, 28802223, 67205187, 201615561]

約数ペア:

[(1, 201615561), (3, 67205187), (7, 28802223), (9, 22401729), (21, 9600741), (27, 7467243), (63, 3200247), (73, 2761857), (81, 2489081), (189, 1066749), (219, 920619), (511, 394551), (567, 355583), (657, 306873), (1533, 131517), (1971, 102291), (4599, 43839), (4871, 41391), (5913, 34097), (13797, 14613)]