21640294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26849}}^1$

素因数の和:26895

約数の個数: 16

約数和(自身を含む): 36086400

約数和(自身を除く): 14446106

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 26849, 53698, 349037, 698074, 832319, 1664638, 10820147, 21640294]

約数ペア:

[(1, 21640294), (2, 10820147), (13, 1664638), (26, 832319), (31, 698074), (62, 349037), (403, 53698), (806, 26849)]