15681721

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 18433800

約数和(自身を除く): 2752079

約数列:

[1, 11, 29, 41, 109, 121, 319, 451, 1189, 1199, 3161, 3509, 4469, 4961, 13079, 13189, 34771, 49159, 129601, 143869, 382481, 540749, 1425611, 15681721]

約数ペア:

[(1, 15681721), (11, 1425611), (29, 540749), (41, 382481), (109, 143869), (121, 129601), (319, 49159), (451, 34771), (1189, 13189), (1199, 13079), (3161, 4961), (3509, 4469)]