21854812

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16607}}^1$

素因数の和:16665

約数の個数: 24

約数和(自身を含む): 44642304

約数和(自身を除く): 22787492

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16607, 33214, 66428, 116249, 232498, 464996, 780529, 1561058, 3122116, 5463703, 10927406, 21854812]

約数ペア:

[(1, 21854812), (2, 10927406), (4, 5463703), (7, 3122116), (14, 1561058), (28, 780529), (47, 464996), (94, 232498), (188, 116249), (329, 66428), (658, 33214), (1316, 16607)]