21905464

素因数分解:

$2^3\times 7^1\times {\mathrm{443}}^1\times {\mathrm{883}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 47099520

約数和(自身を除く): 25194056

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 443, 883, 886, 1766, 1772, 3101, 3532, 3544, 6181, 6202, 7064, 12362, 12404, 24724, 24808, 49448, 391169, 782338, 1564676, 2738183, 3129352, 5476366, 10952732, 21905464]

約数ペア:

[(1, 21905464), (2, 10952732), (4, 5476366), (7, 3129352), (8, 2738183), (14, 1564676), (28, 782338), (56, 391169), (443, 49448), (883, 24808), (886, 24724), (1766, 12404), (1772, 12362), (3101, 7064), (3532, 6202), (3544, 6181)]