20172218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{15541}}^1$

素因数の和:15613

約数の個数: 16

約数和(自身を含む): 33570720

約数和(自身を除く): 13398502

約数列:

[1, 2, 11, 22, 59, 118, 649, 1298, 15541, 31082, 170951, 341902, 916919, 1833838, 10086109, 20172218]

約数ペア:

[(1, 20172218), (2, 10086109), (11, 1833838), (22, 916919), (59, 341902), (118, 170951), (649, 31082), (1298, 15541)]