19742470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1777}}^1$

素因数の和:1896

約数の個数: 32

約数和(自身を含む): 39172896

約数和(自身を除く): 19430426

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 1777, 2222, 3554, 5555, 8885, 11110, 17770, 19547, 39094, 97735, 179477, 195470, 358954, 897385, 1794770, 1974247, 3948494, 9871235, 19742470]

約数ペア:

[(1, 19742470), (2, 9871235), (5, 3948494), (10, 1974247), (11, 1794770), (22, 897385), (55, 358954), (101, 195470), (110, 179477), (202, 97735), (505, 39094), (1010, 19547), (1111, 17770), (1777, 11110), (2222, 8885), (3554, 5555)]