66721516

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{769}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 118580000

約数和(自身を除く): 51858484

約数列:

[1, 2, 4, 109, 199, 218, 398, 436, 769, 796, 1538, 3076, 21691, 43382, 83821, 86764, 153031, 167642, 306062, 335284, 612124, 16680379, 33360758, 66721516]

約数ペア:

[(1, 66721516), (2, 33360758), (4, 16680379), (109, 612124), (199, 335284), (218, 306062), (398, 167642), (436, 153031), (769, 86764), (796, 83821), (1538, 43382), (3076, 21691)]