19126228

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:988

約数の個数: 36

約数和(自身を含む): 37686880

約数和(自身を除く): 18560652

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 919, 946, 1838, 1892, 3676, 5203, 10109, 10406, 20218, 20812, 39517, 40436, 79034, 111199, 158068, 222398, 434687, 444796, 869374, 1738748, 4781557, 9563114, 19126228]

約数ペア:

[(1, 19126228), (2, 9563114), (4, 4781557), (11, 1738748), (22, 869374), (43, 444796), (44, 434687), (86, 222398), (121, 158068), (172, 111199), (242, 79034), (473, 40436), (484, 39517), (919, 20812), (946, 20218), (1838, 10406), (1892, 10109), (3676, 5203)]