21178492

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{1091}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 38892672

約数和(自身を除く): 17714180

約数列:

[1, 2, 4, 23, 46, 92, 211, 422, 844, 1091, 2182, 4364, 4853, 9706, 19412, 25093, 50186, 100372, 230201, 460402, 920804, 5294623, 10589246, 21178492]

約数ペア:

[(1, 21178492), (2, 10589246), (4, 5294623), (23, 920804), (46, 460402), (92, 230201), (211, 100372), (422, 50186), (844, 25093), (1091, 19412), (2182, 9706), (4364, 4853)]