1285551

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:340

約数の個数: 20

約数和(自身を含む): 1960200

約数和(自身を除く): 674649

約数列:

[1, 3, 9, 27, 59, 81, 177, 269, 531, 807, 1593, 2421, 4779, 7263, 15871, 21789, 47613, 142839, 428517, 1285551]

約数ペア:

[(1, 1285551), (3, 428517), (9, 142839), (27, 47613), (59, 21789), (81, 15871), (177, 7263), (269, 4779), (531, 2421), (807, 1593)]