21716168

素因数分解:

$2^3\times {\mathrm{653}}^1\times {\mathrm{4157}}^1$

素因数の和:4816

約数の個数: 16

約数和(自身を含む): 40789980

約数和(自身を除く): 19073812

約数列:

[1, 2, 4, 8, 653, 1306, 2612, 4157, 5224, 8314, 16628, 33256, 2714521, 5429042, 10858084, 21716168]

約数ペア:

[(1, 21716168), (2, 10858084), (4, 5429042), (8, 2714521), (653, 33256), (1306, 16628), (2612, 8314), (4157, 5224)]