21113954

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{4211}}^1$

素因数の和:4345

約数の個数: 16

約数和(自身を含む): 33359040

約数和(自身を除く): 12245086

約数列:

[1, 2, 23, 46, 109, 218, 2507, 4211, 5014, 8422, 96853, 193706, 458999, 917998, 10556977, 21113954]

約数ペア:

[(1, 21113954), (2, 10556977), (23, 917998), (46, 458999), (109, 193706), (218, 96853), (2507, 8422), (4211, 5014)]