18750992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90149}}^1$

素因数の和:90170

約数の個数: 20

約数和(自身を含む): 39125100

約数和(自身を除く): 20374108

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90149, 180298, 360596, 721192, 1171937, 1442384, 2343874, 4687748, 9375496, 18750992]

約数ペア:

[(1, 18750992), (2, 9375496), (4, 4687748), (8, 2343874), (13, 1442384), (16, 1171937), (26, 721192), (52, 360596), (104, 180298), (208, 90149)]