1290003003

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{154621}}^1$

素因数の和:154736

約数の個数: 20

約数和(自身を含む): 1945763248

約数和(自身を除く): 655760245

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 8343, 154621, 463863, 1391589, 4174767, 12524301, 15925963, 47777889, 143333667, 430001001, 1290003003]

約数ペア:

[(1, 1290003003), (3, 430001001), (9, 143333667), (27, 47777889), (81, 15925963), (103, 12524301), (309, 4174767), (927, 1391589), (2781, 463863), (8343, 154621)]