21037562

素因数分解:

$2^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{337}}^1$

素因数の和:380

約数の個数: 40

約数和(自身を含む): 39762996

約数和(自身を除く): 18725434

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 337, 343, 637, 674, 686, 1274, 2359, 2401, 4381, 4459, 4718, 4802, 8762, 8918, 16513, 30667, 31213, 33026, 61334, 62426, 115591, 214669, 231182, 429338, 809137, 1502683, 1618274, 3005366, 10518781, 21037562]

約数ペア:

[(1, 21037562), (2, 10518781), (7, 3005366), (13, 1618274), (14, 1502683), (26, 809137), (49, 429338), (91, 231182), (98, 214669), (182, 115591), (337, 62426), (343, 61334), (637, 33026), (674, 31213), (686, 30667), (1274, 16513), (2359, 8918), (2401, 8762), (4381, 4802), (4459, 4718)]