20901477568

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{4599797}}^1$

素因数の和:4599880

約数の個数: 28

約数和(自身を含む): 42060552912

約数和(自身を除く): 21159075344

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 142, 284, 568, 1136, 2272, 4544, 4599797, 9199594, 18399188, 36798376, 73596752, 147193504, 294387008, 326585587, 653171174, 1306342348, 2612684696, 5225369392, 10450738784, 20901477568]

約数ペア:

[(1, 20901477568), (2, 10450738784), (4, 5225369392), (8, 2612684696), (16, 1306342348), (32, 653171174), (64, 326585587), (71, 294387008), (142, 147193504), (284, 73596752), (568, 36798376), (1136, 18399188), (2272, 9199594), (4544, 4599797)]