19137489

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{617}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 29871648

約数和(自身を除く): 10734159

約数列:

[1, 3, 7, 21, 49, 147, 211, 617, 633, 1477, 1851, 4319, 4431, 10339, 12957, 30233, 31017, 90699, 130187, 390561, 911309, 2733927, 6379163, 19137489]

約数ペア:

[(1, 19137489), (3, 6379163), (7, 2733927), (21, 911309), (49, 390561), (147, 130187), (211, 90699), (617, 31017), (633, 30233), (1477, 12957), (1851, 10339), (4319, 4431)]