20652764

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:698

約数の個数: 36

約数和(自身を含む): 40353264

約数和(自身を除く): 19700500

約数列:

[1, 2, 4, 11, 22, 44, 71, 121, 142, 242, 284, 484, 601, 781, 1202, 1562, 2404, 3124, 6611, 8591, 13222, 17182, 26444, 34364, 42671, 72721, 85342, 145442, 170684, 290884, 469381, 938762, 1877524, 5163191, 10326382, 20652764]

約数ペア:

[(1, 20652764), (2, 10326382), (4, 5163191), (11, 1877524), (22, 938762), (44, 469381), (71, 290884), (121, 170684), (142, 145442), (242, 85342), (284, 72721), (484, 42671), (601, 34364), (781, 26444), (1202, 17182), (1562, 13222), (2404, 8591), (3124, 6611)]