20885008

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17881}}^1$

素因数の和:17962

約数の個数: 20

約数和(自身を含む): 41021308

約数和(自身を除く): 20136300

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17881, 35762, 71524, 143048, 286096, 1305313, 2610626, 5221252, 10442504, 20885008]

約数ペア:

[(1, 20885008), (2, 10442504), (4, 5221252), (8, 2610626), (16, 1305313), (73, 286096), (146, 143048), (292, 71524), (584, 35762), (1168, 17881)]