28379403

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{26951}}^1$

素因数の和:26976

約数の個数: 20

約数和(自身を含む): 45656688

約数和(自身を除く): 17277285

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 26951, 80853, 242559, 350363, 727677, 1051089, 2183031, 3153267, 9459801, 28379403]

約数ペア:

[(1, 28379403), (3, 9459801), (9, 3153267), (13, 2183031), (27, 1051089), (39, 727677), (81, 350363), (117, 242559), (351, 80853), (1053, 26951)]