19998297

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2557}}^1$

素因数の和:2653

約数の個数: 24

約数和(自身を含む): 31923840

約数和(自身を除く): 11925543

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2557, 2607, 7671, 7821, 23013, 28127, 84381, 202003, 253143, 606009, 1818027, 2222033, 6666099, 19998297]

約数ペア:

[(1, 19998297), (3, 6666099), (9, 2222033), (11, 1818027), (33, 606009), (79, 253143), (99, 202003), (237, 84381), (711, 28127), (869, 23013), (2557, 7821), (2607, 7671)]