19198137

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 30523392

約数和(自身を除く): 11325255

約数列:

[1, 3, 7, 21, 47, 53, 141, 159, 329, 367, 371, 987, 1101, 1113, 2491, 2569, 7473, 7707, 17249, 17437, 19451, 51747, 52311, 58353, 120743, 136157, 362229, 408471, 914197, 2742591, 6399379, 19198137]

約数ペア:

[(1, 19198137), (3, 6399379), (7, 2742591), (21, 914197), (47, 408471), (53, 362229), (141, 136157), (159, 120743), (329, 58353), (367, 52311), (371, 51747), (987, 19451), (1101, 17437), (1113, 17249), (2491, 7707), (2569, 7473)]