18937699

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^3\times {\mathrm{251}}^1$

素因数の和:319

約数の個数: 16

約数和(自身を含む): 21893760

約数和(自身を除く): 2956061

約数列:

[1, 11, 19, 209, 251, 361, 2761, 3971, 4769, 6859, 52459, 75449, 90611, 996721, 1721609, 18937699]

約数ペア:

[(1, 18937699), (11, 1721609), (19, 996721), (209, 90611), (251, 75449), (361, 52459), (2761, 6859), (3971, 4769)]