19908724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{7669}}^1$

素因数の和:7743

約数の個数: 24

約数和(自身を含む): 38656800

約数和(自身を除く): 18748076

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 7669, 15338, 30676, 84359, 168718, 337436, 452471, 904942, 1809884, 4977181, 9954362, 19908724]

約数ペア:

[(1, 19908724), (2, 9954362), (4, 4977181), (11, 1809884), (22, 904942), (44, 452471), (59, 337436), (118, 168718), (236, 84359), (649, 30676), (1298, 15338), (2596, 7669)]