20168385215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{571}}^1\times {\mathrm{4253}}^1$

素因数の和:4991

約数の個数: 32

約数和(自身を含む): 26629903872

約数和(自身を除く): 6461518657

約数列:

[1, 5, 11, 55, 151, 571, 755, 1661, 2855, 4253, 6281, 8305, 21265, 31405, 46783, 86221, 233915, 431105, 642203, 948431, 2428463, 3211015, 4742155, 7064233, 12142315, 26713093, 35321165, 133565465, 366697913, 1833489565, 4033677043, 20168385215]

約数ペア:

[(1, 20168385215), (5, 4033677043), (11, 1833489565), (55, 366697913), (151, 133565465), (571, 35321165), (755, 26713093), (1661, 12142315), (2855, 7064233), (4253, 4742155), (6281, 3211015), (8305, 2428463), (21265, 948431), (31405, 642203), (46783, 431105), (86221, 233915)]