21127012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1553}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 39160800

約数和(自身を除く): 18033788

約数列:

[1, 2, 4, 19, 38, 76, 179, 358, 716, 1553, 3106, 3401, 6212, 6802, 13604, 29507, 59014, 118028, 277987, 555974, 1111948, 5281753, 10563506, 21127012]

約数ペア:

[(1, 21127012), (2, 10563506), (4, 5281753), (19, 1111948), (38, 555974), (76, 277987), (179, 118028), (358, 59014), (716, 29507), (1553, 13604), (3106, 6802), (3401, 6212)]