18883898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{27689}}^1$

素因数の和:27733

約数の個数: 16

約数和(自身を含む): 31898880

約数和(自身を除く): 13014982

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 27689, 55378, 304579, 609158, 858359, 1716718, 9441949, 18883898]

約数ペア:

[(1, 18883898), (2, 9441949), (11, 1716718), (22, 858359), (31, 609158), (62, 304579), (341, 55378), (682, 27689)]