21909148919

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1\times {\mathrm{2237}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 26569536000

約数和(自身を除く): 4660387081

約数列:

[1, 7, 19, 133, 211, 349, 1477, 2237, 2443, 4009, 6631, 15659, 28063, 42503, 46417, 73639, 297521, 472007, 515473, 780713, 1399141, 3304049, 5464991, 8968133, 9793987, 14833547, 62776931, 103834829, 164730443, 1153113101, 3129878417, 21909148919]

約数ペア:

[(1, 21909148919), (7, 3129878417), (19, 1153113101), (133, 164730443), (211, 103834829), (349, 62776931), (1477, 14833547), (2237, 9793987), (2443, 8968133), (4009, 5464991), (6631, 3304049), (15659, 1399141), (28063, 780713), (42503, 515473), (46417, 472007), (73639, 297521)]