13381947

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 20529600

約数和(自身を除く): 7147653

約数列:

[1, 3, 9, 19, 57, 139, 171, 417, 563, 1251, 1689, 2641, 5067, 7923, 10697, 23769, 32091, 78257, 96273, 234771, 704313, 1486883, 4460649, 13381947]

約数ペア:

[(1, 13381947), (3, 4460649), (9, 1486883), (19, 704313), (57, 234771), (139, 96273), (171, 78257), (417, 32091), (563, 23769), (1251, 10697), (1689, 7923), (2641, 5067)]