18979945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{1093}}^1$

素因数の和:1272

約数の個数: 16

約数和(自身を含む): 23945472

約数和(自身を除く): 4965527

約数列:

[1, 5, 23, 115, 151, 755, 1093, 3473, 5465, 17365, 25139, 125695, 165043, 825215, 3795989, 18979945]

約数ペア:

[(1, 18979945), (5, 3795989), (23, 825215), (115, 165043), (151, 125695), (755, 25139), (1093, 17365), (3473, 5465)]