20216438

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:764

約数の個数: 24

約数和(自身を含む): 33627720

約数和(自身を除く): 13411282

約数列:

[1, 2, 11, 22, 121, 139, 242, 278, 601, 1202, 1529, 3058, 6611, 13222, 16819, 33638, 72721, 83539, 145442, 167078, 918929, 1837858, 10108219, 20216438]

約数ペア:

[(1, 20216438), (2, 10108219), (11, 1837858), (22, 918929), (121, 167078), (139, 145442), (242, 83539), (278, 72721), (601, 33638), (1202, 16819), (1529, 13222), (3058, 6611)]