625830009

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{20177}}^1$

素因数の和:20405

約数の個数: 24

約数和(自身を含む): 975323808

約数和(自身を除く): 349493799

約数列:

[1, 3, 7, 21, 49, 147, 211, 633, 1477, 4431, 10339, 20177, 31017, 60531, 141239, 423717, 988673, 2966019, 4257347, 12772041, 29801429, 89404287, 208610003, 625830009]

約数ペア:

[(1, 625830009), (3, 208610003), (7, 89404287), (21, 29801429), (49, 12772041), (147, 4257347), (211, 2966019), (633, 988673), (1477, 423717), (4431, 141239), (10339, 60531), (20177, 31017)]