19996845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7129}}^1$

素因数の和:7165

約数の個数: 32

約数和(自身を含む): 36961920

約数和(自身を除く): 16965075

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7129, 21387, 35645, 78419, 106935, 121193, 235257, 363579, 392095, 605965, 1176285, 1333123, 1817895, 3999369, 6665615, 19996845]

約数ペア:

[(1, 19996845), (3, 6665615), (5, 3999369), (11, 1817895), (15, 1333123), (17, 1176285), (33, 605965), (51, 392095), (55, 363579), (85, 235257), (165, 121193), (187, 106935), (255, 78419), (561, 35645), (935, 21387), (2805, 7129)]