647998503

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{80929}}^1$

素因数の和:81106

約数の個数: 16

約数和(自身を含む): 920659680

約数和(自身を除く): 272661177

約数列:

[1, 3, 17, 51, 157, 471, 2669, 8007, 80929, 242787, 1375793, 4127379, 12705853, 38117559, 215999501, 647998503]

約数ペア:

[(1, 647998503), (3, 215999501), (17, 38117559), (51, 12705853), (157, 4127379), (471, 1375793), (2669, 242787), (8007, 80929)]