28731989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 7846315

約数列:

[1, 11, 13, 17, 53, 143, 187, 221, 223, 583, 689, 901, 2431, 2453, 2899, 3791, 7579, 9911, 11713, 11819, 31889, 41701, 49283, 128843, 130009, 153647, 200923, 542113, 1690117, 2210153, 2611999, 28731989]

約数ペア:

[(1, 28731989), (11, 2611999), (13, 2210153), (17, 1690117), (53, 542113), (143, 200923), (187, 153647), (221, 130009), (223, 128843), (583, 49283), (689, 41701), (901, 31889), (2431, 11819), (2453, 11713), (2899, 9911), (3791, 7579)]