28709205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3851}}^1$

素因数の和:3937

約数の個数: 32

約数和(自身を含む): 53250048

約数和(自身を除く): 24540843

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 3851, 7455, 11553, 19255, 26957, 57765, 80871, 134785, 273421, 404355, 820263, 1367105, 1913947, 4101315, 5741841, 9569735, 28709205]

約数ペア:

[(1, 28709205), (3, 9569735), (5, 5741841), (7, 4101315), (15, 1913947), (21, 1367105), (35, 820263), (71, 404355), (105, 273421), (213, 134785), (355, 80871), (497, 57765), (1065, 26957), (1491, 19255), (2485, 11553), (3851, 7455)]