28519605

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7121}}^1$

素因数の和:7221

約数の個数: 24

約数和(自身を含む): 49996440

約数和(自身を除く): 21476835

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 7121, 21363, 35605, 64089, 106815, 320445, 633769, 1901307, 3168845, 5703921, 9506535, 28519605]

約数ペア:

[(1, 28519605), (3, 9506535), (5, 5703921), (9, 3168845), (15, 1901307), (45, 633769), (89, 320445), (267, 106815), (445, 64089), (801, 35605), (1335, 21363), (4005, 7121)]