21131096

素因数分解:

$2^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{941}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 45442080

約数和(自身を除く): 24310984

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 401, 802, 941, 1604, 1882, 2807, 3208, 3764, 5614, 6587, 7528, 11228, 13174, 22456, 26348, 52696, 377341, 754682, 1509364, 2641387, 3018728, 5282774, 10565548, 21131096]

約数ペア:

[(1, 21131096), (2, 10565548), (4, 5282774), (7, 3018728), (8, 2641387), (14, 1509364), (28, 754682), (56, 377341), (401, 52696), (802, 26348), (941, 22456), (1604, 13174), (1882, 11228), (2807, 7528), (3208, 6587), (3764, 5614)]