18994017

素因数分解:

$3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 29683776

約数和(自身を除く): 10689759

約数列:

[1, 3, 7, 21, 49, 147, 157, 471, 823, 1099, 2469, 3297, 5761, 7693, 17283, 23079, 40327, 120981, 129211, 387633, 904477, 2713431, 6331339, 18994017]

約数ペア:

[(1, 18994017), (3, 6331339), (7, 2713431), (21, 904477), (49, 387633), (147, 129211), (157, 120981), (471, 40327), (823, 23079), (1099, 17283), (2469, 7693), (3297, 5761)]