20621666

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11171}}^1$

素因数の和:11257

約数の個数: 16

約数和(自身を含む): 33784128

約数和(自身を除く): 13162462

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 11171, 22342, 145223, 290446, 793141, 1586282, 10310833, 20621666]

約数ペア:

[(1, 20621666), (2, 10310833), (13, 1586282), (26, 793141), (71, 290446), (142, 145223), (923, 22342), (1846, 11171)]