19661290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16249}}^1$

素因数の和:16278

約数の個数: 24

約数和(自身を含む): 38902500

約数和(自身を除く): 19241210

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16249, 32498, 81245, 162490, 178739, 357478, 893695, 1787390, 1966129, 3932258, 9830645, 19661290]

約数ペア:

[(1, 19661290), (2, 9830645), (5, 3932258), (10, 1966129), (11, 1787390), (22, 893695), (55, 357478), (110, 178739), (121, 162490), (242, 81245), (605, 32498), (1210, 16249)]