20217778

素因数分解:

$2^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{2333}}^1$

素因数の和:2961

約数の個数: 16

約数和(自身を含む): 34729920

約数和(自身を除く): 14512142

約数列:

[1, 2, 7, 14, 619, 1238, 2333, 4333, 4666, 8666, 16331, 32662, 1444127, 2888254, 10108889, 20217778]

約数ペア:

[(1, 20217778), (2, 10108889), (7, 2888254), (14, 1444127), (619, 32662), (1238, 16331), (2333, 8666), (4333, 4666)]