221458433

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 275270400

約数和(自身を除く): 53811967

約数列:

[1, 7, 19, 53, 89, 133, 353, 371, 623, 1007, 1691, 2471, 4717, 6707, 7049, 11837, 18709, 31417, 33019, 46949, 89623, 130963, 219919, 355471, 596923, 627361, 1665101, 2488297, 4178461, 11655707, 31636919, 221458433]

約数ペア:

[(1, 221458433), (7, 31636919), (19, 11655707), (53, 4178461), (89, 2488297), (133, 1665101), (353, 627361), (371, 596923), (623, 355471), (1007, 219919), (1691, 130963), (2471, 89623), (4717, 46949), (6707, 33019), (7049, 31417), (11837, 18709)]