19878046

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{787}}^1$

素因数の和:1035

約数の個数: 16

約数和(自身を含む): 30438864

約数和(自身を除く): 10560818

約数列:

[1, 2, 73, 146, 173, 346, 787, 1574, 12629, 25258, 57451, 114902, 136151, 272302, 9939023, 19878046]

約数ペア:

[(1, 19878046), (2, 9939023), (73, 272302), (146, 136151), (173, 114902), (346, 57451), (787, 25258), (1574, 12629)]