19704904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{144889}}^1$

素因数の和:144912

約数の個数: 16

約数和(自身を含む): 39120300

約数和(自身を除く): 19415396

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 144889, 289778, 579556, 1159112, 2463113, 4926226, 9852452, 19704904]

約数ペア:

[(1, 19704904), (2, 9852452), (4, 4926226), (8, 2463113), (17, 1159112), (34, 579556), (68, 289778), (136, 144889)]