21885808

素因数分解:

$2^4\times 7^1\times {\mathrm{263}}^1\times {\mathrm{743}}^1$

素因数の和:1021

約数の個数: 40

約数和(自身を含む): 48711168

約数和(自身を除く): 26825360

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 263, 526, 743, 1052, 1486, 1841, 2104, 2972, 3682, 4208, 5201, 5944, 7364, 10402, 11888, 14728, 20804, 29456, 41608, 83216, 195409, 390818, 781636, 1367863, 1563272, 2735726, 3126544, 5471452, 10942904, 21885808]

約数ペア:

[(1, 21885808), (2, 10942904), (4, 5471452), (7, 3126544), (8, 2735726), (14, 1563272), (16, 1367863), (28, 781636), (56, 390818), (112, 195409), (263, 83216), (526, 41608), (743, 29456), (1052, 20804), (1486, 14728), (1841, 11888), (2104, 10402), (2972, 7364), (3682, 5944), (4208, 5201)]