28571851

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 36

約数和(自身を含む): 37601760

約数和(自身を除く): 9029909

約数列:

[1, 7, 11, 49, 61, 77, 79, 121, 427, 539, 553, 671, 847, 869, 2989, 3871, 4697, 4819, 5929, 6083, 7381, 9559, 32879, 33733, 42581, 51667, 53009, 66913, 236131, 361669, 371063, 468391, 583099, 2597441, 4081693, 28571851]

約数ペア:

[(1, 28571851), (7, 4081693), (11, 2597441), (49, 583099), (61, 468391), (77, 371063), (79, 361669), (121, 236131), (427, 66913), (539, 53009), (553, 51667), (671, 42581), (847, 33733), (869, 32879), (2989, 9559), (3871, 7381), (4697, 6083), (4819, 5929)]