20618414

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{1217}}^1$

素因数の和:1459

約数の個数: 16

約数和(自身を含む): 31833648

約数和(自身を除く): 11215234

約数列:

[1, 2, 43, 86, 197, 394, 1217, 2434, 8471, 16942, 52331, 104662, 239749, 479498, 10309207, 20618414]

約数ペア:

[(1, 20618414), (2, 10309207), (43, 479498), (86, 239749), (197, 104662), (394, 52331), (1217, 16942), (2434, 8471)]