28158039

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{34381}}^1$

素因数の和:34407

約数の個数: 24

約数和(自身を含む): 50060192

約数和(自身を除く): 21902153

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 34381, 103143, 240667, 309429, 446953, 722001, 1340859, 2166003, 3128671, 4022577, 9386013, 28158039]

約数ペア:

[(1, 28158039), (3, 9386013), (7, 4022577), (9, 3128671), (13, 2166003), (21, 1340859), (39, 722001), (63, 446953), (91, 309429), (117, 240667), (273, 103143), (819, 34381)]