19129990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173909}}^1$

素因数の和:173927

約数の個数: 16

約数和(自身を含む): 37564560

約数和(自身を除く): 18434570

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173909, 347818, 869545, 1739090, 1912999, 3825998, 9564995, 19129990]

約数ペア:

[(1, 19129990), (2, 9564995), (5, 3825998), (10, 1912999), (11, 1739090), (22, 869545), (55, 347818), (110, 173909)]