20429444

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 43690752

約数和(自身を除く): 23261308

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 167, 238, 257, 334, 476, 514, 668, 1028, 1169, 1799, 2338, 2839, 3598, 4369, 4676, 5678, 7196, 8738, 11356, 17476, 19873, 30583, 39746, 42919, 61166, 79492, 85838, 122332, 171676, 300433, 600866, 729623, 1201732, 1459246, 2918492, 5107361, 10214722, 20429444]

約数ペア:

[(1, 20429444), (2, 10214722), (4, 5107361), (7, 2918492), (14, 1459246), (17, 1201732), (28, 729623), (34, 600866), (68, 300433), (119, 171676), (167, 122332), (238, 85838), (257, 79492), (334, 61166), (476, 42919), (514, 39746), (668, 30583), (1028, 19873), (1169, 17476), (1799, 11356), (2338, 8738), (2839, 7196), (3598, 5678), (4369, 4676)]