21538942

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{977}}^1$

素因数の和:1203

約数の個数: 16

約数和(自身を含む): 33001632

約数和(自身を除く): 11462690

約数列:

[1, 2, 73, 146, 151, 302, 977, 1954, 11023, 22046, 71321, 142642, 147527, 295054, 10769471, 21538942]

約数ペア:

[(1, 21538942), (2, 10769471), (73, 295054), (146, 147527), (151, 142642), (302, 71321), (977, 22046), (1954, 11023)]