19984954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8039}}^1$

素因数の和:8165

約数の個数: 16

約数和(自身を含む): 32996160

約数和(自身を除く): 13011206

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8039, 16078, 88429, 176858, 908407, 1816814, 9992477, 19984954]

約数ペア:

[(1, 19984954), (2, 9992477), (11, 1816814), (22, 908407), (113, 176858), (226, 88429), (1243, 16078), (2486, 8039)]