16991715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1103}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 12683805

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1103, 1185, 3081, 3309, 5135, 5515, 14339, 15405, 16545, 43017, 71695, 87137, 215085, 261411, 435685, 1132781, 1307055, 3398343, 5663905, 16991715]

約数ペア:

[(1, 16991715), (3, 5663905), (5, 3398343), (13, 1307055), (15, 1132781), (39, 435685), (65, 261411), (79, 215085), (195, 87137), (237, 71695), (395, 43017), (1027, 16545), (1103, 15405), (1185, 14339), (3081, 5515), (3309, 5135)]