20196765

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1553}}^1$

素因数の和:1598

約数の個数: 36

約数和(自身を含む): 37212084

約数和(自身を除く): 17015319

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 1445, 1553, 2601, 4335, 4659, 7765, 13005, 13977, 23295, 26401, 69885, 79203, 132005, 237609, 396015, 448817, 1188045, 1346451, 2244085, 4039353, 6732255, 20196765]

約数ペア:

[(1, 20196765), (3, 6732255), (5, 4039353), (9, 2244085), (15, 1346451), (17, 1188045), (45, 448817), (51, 396015), (85, 237609), (153, 132005), (255, 79203), (289, 69885), (765, 26401), (867, 23295), (1445, 13977), (1553, 13005), (2601, 7765), (4335, 4659)]