20520554

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{7561}}^1$

素因数の和:7645

約数の個数: 16

約数和(自身を含む): 32667840

約数和(自身を除く): 12147286

約数列:

[1, 2, 23, 46, 59, 118, 1357, 2714, 7561, 15122, 173903, 347806, 446099, 892198, 10260277, 20520554]

約数ペア:

[(1, 20520554), (2, 10260277), (23, 892198), (46, 446099), (59, 347806), (118, 173903), (1357, 15122), (2714, 7561)]