19691032

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2161}}^1$

素因数の和:2251

約数の個数: 32

約数和(自身を含む): 39694320

約数和(自身を除く): 20003288

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 268, 536, 1139, 2161, 2278, 4322, 4556, 8644, 9112, 17288, 36737, 73474, 144787, 146948, 289574, 293896, 579148, 1158296, 2461379, 4922758, 9845516, 19691032]

約数ペア:

[(1, 19691032), (2, 9845516), (4, 4922758), (8, 2461379), (17, 1158296), (34, 579148), (67, 293896), (68, 289574), (134, 146948), (136, 144787), (268, 73474), (536, 36737), (1139, 17288), (2161, 9112), (2278, 8644), (4322, 4556)]