21627172

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18839}}^1$

素因数の和:18891

約数の個数: 24

約数和(自身を含む): 44311680

約数和(自身を除く): 22684508

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18839, 37678, 75356, 131873, 263746, 527492, 772399, 1544798, 3089596, 5406793, 10813586, 21627172]

約数ペア:

[(1, 21627172), (2, 10813586), (4, 5406793), (7, 3089596), (14, 1544798), (28, 772399), (41, 527492), (82, 263746), (164, 131873), (287, 75356), (574, 37678), (1148, 18839)]