19957156

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{659}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 35814240

約数和(自身を除く): 15857084

約数列:

[1, 2, 4, 67, 113, 134, 226, 268, 452, 659, 1318, 2636, 7571, 15142, 30284, 44153, 74467, 88306, 148934, 176612, 297868, 4989289, 9978578, 19957156]

約数ペア:

[(1, 19957156), (2, 9978578), (4, 4989289), (67, 297868), (113, 176612), (134, 148934), (226, 88306), (268, 74467), (452, 44153), (659, 30284), (1318, 15142), (2636, 7571)]