28728817

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 34257600

約数和(自身を除く): 5528783

約数列:

[1, 13, 19, 23, 169, 247, 299, 389, 437, 3211, 3887, 5057, 5681, 7391, 8947, 65741, 73853, 96083, 116311, 169993, 1249079, 1512043, 2209909, 28728817]

約数ペア:

[(1, 28728817), (13, 2209909), (19, 1512043), (23, 1249079), (169, 169993), (247, 116311), (299, 96083), (389, 73853), (437, 65741), (3211, 8947), (3887, 7391), (5057, 5681)]