19913925

素因数分解:

$3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{3361}}^1$

素因数の和:3453

約数の個数: 24

約数和(自身を含む): 33351040

約数和(自身を除く): 13437115

約数列:

[1, 3, 5, 15, 25, 75, 79, 237, 395, 1185, 1975, 3361, 5925, 10083, 16805, 50415, 84025, 252075, 265519, 796557, 1327595, 3982785, 6637975, 19913925]

約数ペア:

[(1, 19913925), (3, 6637975), (5, 3982785), (15, 1327595), (25, 796557), (75, 265519), (79, 252075), (237, 84025), (395, 50415), (1185, 16805), (1975, 10083), (3361, 5925)]