28198395

素因数分解:

$3^3\times 5^1\times {\mathrm{208877}}^1$

素因数の和:208891

約数の個数: 16

約数和(自身を含む): 50130720

約数和(自身を除く): 21932325

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 208877, 626631, 1044385, 1879893, 3133155, 5639679, 9399465, 28198395]

約数ペア:

[(1, 28198395), (3, 9399465), (5, 5639679), (9, 3133155), (15, 1879893), (27, 1044385), (45, 626631), (135, 208877)]