18947390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2237}}^1$

素因数の和:2273

約数の個数: 48

約数和(自身を含む): 42862176

約数和(自身を除く): 23914786

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2237, 4235, 4474, 8470, 11185, 15659, 22370, 24607, 31318, 49214, 78295, 123035, 156590, 172249, 246070, 270677, 344498, 541354, 861245, 1353385, 1722490, 1894739, 2706770, 3789478, 9473695, 18947390]

約数ペア:

[(1, 18947390), (2, 9473695), (5, 3789478), (7, 2706770), (10, 1894739), (11, 1722490), (14, 1353385), (22, 861245), (35, 541354), (55, 344498), (70, 270677), (77, 246070), (110, 172249), (121, 156590), (154, 123035), (242, 78295), (385, 49214), (605, 31318), (770, 24607), (847, 22370), (1210, 15659), (1694, 11185), (2237, 8470), (4235, 4474)]