7820391

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 11819520

約数和(自身を除く): 3999129

約数列:

[1, 3, 17, 23, 51, 59, 69, 113, 177, 339, 391, 1003, 1173, 1357, 1921, 2599, 3009, 4071, 5763, 6667, 7797, 20001, 23069, 44183, 69207, 113339, 132549, 153341, 340017, 460023, 2606797, 7820391]

約数ペア:

[(1, 7820391), (3, 2606797), (17, 460023), (23, 340017), (51, 153341), (59, 132549), (69, 113339), (113, 69207), (177, 44183), (339, 23069), (391, 20001), (1003, 7797), (1173, 6667), (1357, 5763), (1921, 4071), (2599, 3009)]