21877808

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18731}}^1$

素因数の和:18812

約数の個数: 20

約数和(自身を含む): 42971208

約数和(自身を除く): 21093400

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18731, 37462, 74924, 149848, 299696, 1367363, 2734726, 5469452, 10938904, 21877808]

約数ペア:

[(1, 21877808), (2, 10938904), (4, 5469452), (8, 2734726), (16, 1367363), (73, 299696), (146, 149848), (292, 74924), (584, 37462), (1168, 18731)]