20565196905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{666511}}^1$

素因数の和:666558

約数の個数: 48

約数和(自身を含む): 38295113472

約数和(自身を除く): 17729916567

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 121, 165, 187, 255, 363, 561, 605, 935, 1815, 2057, 2805, 6171, 10285, 30855, 666511, 1999533, 3332555, 7331621, 9997665, 11330687, 21994863, 33992061, 36658105, 56653435, 80647831, 109974315, 124637557, 169960305, 241943493, 373912671, 403239155, 623187785, 1209717465, 1371013127, 1869563355, 4113039381, 6855065635, 20565196905]

約数ペア:

[(1, 20565196905), (3, 6855065635), (5, 4113039381), (11, 1869563355), (15, 1371013127), (17, 1209717465), (33, 623187785), (51, 403239155), (55, 373912671), (85, 241943493), (121, 169960305), (165, 124637557), (187, 109974315), (255, 80647831), (363, 56653435), (561, 36658105), (605, 33992061), (935, 21994863), (1815, 11330687), (2057, 9997665), (2805, 7331621), (6171, 3332555), (10285, 1999533), (30855, 666511)]