20664537

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 30730752

約数和(自身を除く): 10066215

約数列:

[1, 3, 17, 37, 47, 51, 111, 141, 233, 629, 699, 799, 1739, 1887, 2397, 3961, 5217, 8621, 10951, 11883, 25863, 29563, 32853, 88689, 146557, 186167, 405187, 439671, 558501, 1215561, 6888179, 20664537]

約数ペア:

[(1, 20664537), (3, 6888179), (17, 1215561), (37, 558501), (47, 439671), (51, 405187), (111, 186167), (141, 146557), (233, 88689), (629, 32853), (699, 29563), (799, 25863), (1739, 11883), (1887, 10951), (2397, 8621), (3961, 5217)]