21014728568

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154520063}}^1$

素因数の和:154520086

約数の個数: 16

約数和(自身を含む): 41720417280

約数和(自身を除く): 20705688712

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154520063, 309040126, 618080252, 1236160504, 2626841071, 5253682142, 10507364284, 21014728568]

約数ペア:

[(1, 21014728568), (2, 10507364284), (4, 5253682142), (8, 2626841071), (17, 1236160504), (34, 618080252), (68, 309040126), (136, 154520063)]