218996907

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1171}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 327409920

約数和(自身を除く): 108413013

約数列:

[1, 3, 17, 19, 51, 57, 193, 323, 579, 969, 1171, 3281, 3513, 3667, 9843, 11001, 19907, 22249, 59721, 62339, 66747, 187017, 226003, 378233, 678009, 1134699, 3842051, 4294057, 11526153, 12882171, 72998969, 218996907]

約数ペア:

[(1, 218996907), (3, 72998969), (17, 12882171), (19, 11526153), (51, 4294057), (57, 3842051), (193, 1134699), (323, 678009), (579, 378233), (969, 226003), (1171, 187017), (3281, 66747), (3513, 62339), (3667, 59721), (9843, 22249), (11001, 19907)]