209646003

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 326269440

約数和(自身を除く): 116623437

約数列:

[1, 3, 7, 21, 97, 101, 291, 303, 679, 707, 1019, 2037, 2121, 3057, 7133, 9797, 21399, 29391, 68579, 98843, 102919, 205737, 296529, 308757, 691901, 720433, 2075703, 2161299, 9983143, 29949429, 69882001, 209646003]

約数ペア:

[(1, 209646003), (3, 69882001), (7, 29949429), (21, 9983143), (97, 2161299), (101, 2075703), (291, 720433), (303, 691901), (679, 308757), (707, 296529), (1019, 205737), (2037, 102919), (2121, 98843), (3057, 68579), (7133, 29391), (9797, 21399)]