491569197

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1232003}}^1$

素因数の和:1232032

約数の個数: 16

約数和(自身を含む): 788482560

約数和(自身を除く): 296913363

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1232003, 3696009, 8624021, 23408057, 25872063, 70224171, 163856399, 491569197]

約数ペア:

[(1, 491569197), (3, 163856399), (7, 70224171), (19, 25872063), (21, 23408057), (57, 8624021), (133, 3696009), (399, 1232003)]