19310390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15959}}^1$

素因数の和:15988

約数の個数: 24

約数和(自身を含む): 38208240

約数和(自身を除く): 18897850

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 15959, 31918, 79795, 159590, 175549, 351098, 877745, 1755490, 1931039, 3862078, 9655195, 19310390]

約数ペア:

[(1, 19310390), (2, 9655195), (5, 3862078), (10, 1931039), (11, 1755490), (22, 877745), (55, 351098), (110, 175549), (121, 159590), (242, 79795), (605, 31918), (1210, 15959)]