21378634

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{809}}^1$

素因数の和:1065

約数の個数: 16

約数和(自身を含む): 32727240

約数和(自身を除く): 11348606

約数列:

[1, 2, 73, 146, 181, 362, 809, 1618, 13213, 26426, 59057, 118114, 146429, 292858, 10689317, 21378634]

約数ペア:

[(1, 21378634), (2, 10689317), (73, 292858), (146, 146429), (181, 118114), (362, 59057), (809, 26426), (1618, 13213)]