28409805

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12379}}^1$

素因数の和:12410

約数の個数: 32

約数和(自身を含む): 53481600

約数和(自身を除く): 25071795

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 12379, 37137, 61895, 111411, 185685, 210443, 334233, 557055, 631329, 1052215, 1671165, 1893987, 3156645, 5681961, 9469935, 28409805]

約数ペア:

[(1, 28409805), (3, 9469935), (5, 5681961), (9, 3156645), (15, 1893987), (17, 1671165), (27, 1052215), (45, 631329), (51, 557055), (85, 334233), (135, 210443), (153, 185685), (255, 111411), (459, 61895), (765, 37137), (2295, 12379)]