21132848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{719}}^1$

素因数の和:905

約数の個数: 40

約数和(自身を含む): 44997120

約数和(自身を除く): 23864272

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 167, 176, 334, 668, 719, 1336, 1438, 1837, 2672, 2876, 3674, 5752, 7348, 7909, 11504, 14696, 15818, 29392, 31636, 63272, 120073, 126544, 240146, 480292, 960584, 1320803, 1921168, 2641606, 5283212, 10566424, 21132848]

約数ペア:

[(1, 21132848), (2, 10566424), (4, 5283212), (8, 2641606), (11, 1921168), (16, 1320803), (22, 960584), (44, 480292), (88, 240146), (167, 126544), (176, 120073), (334, 63272), (668, 31636), (719, 29392), (1336, 15818), (1438, 14696), (1837, 11504), (2672, 7909), (2876, 7348), (3674, 5752)]