2221251

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 3087744

約数和(自身を除く): 866493

約数列:

[1, 3, 43, 67, 129, 201, 257, 771, 2881, 8643, 11051, 17219, 33153, 51657, 740417, 2221251]

約数ペア:

[(1, 2221251), (3, 740417), (43, 51657), (67, 33153), (129, 17219), (201, 11051), (257, 8643), (771, 2881)]