19782609

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{85639}}^1$

素因数の和:85660

約数の個数: 16

約数和(自身を含む): 32885760

約数和(自身を除く): 13103151

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 85639, 256917, 599473, 942029, 1798419, 2826087, 6594203, 19782609]

約数ペア:

[(1, 19782609), (3, 6594203), (7, 2826087), (11, 1798419), (21, 942029), (33, 599473), (77, 256917), (231, 85639)]