20789745

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 34933248

約数和(自身を除く): 14143503

約数列:

[1, 3, 5, 15, 37, 47, 111, 141, 185, 235, 555, 705, 797, 1739, 2391, 3985, 5217, 8695, 11955, 26085, 29489, 37459, 88467, 112377, 147445, 187295, 442335, 561885, 1385983, 4157949, 6929915, 20789745]

約数ペア:

[(1, 20789745), (3, 6929915), (5, 4157949), (15, 1385983), (37, 561885), (47, 442335), (111, 187295), (141, 147445), (185, 112377), (235, 88467), (555, 37459), (705, 29489), (797, 26085), (1739, 11955), (2391, 8695), (3985, 5217)]