81761978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{1259}}^1\times {\mathrm{1709}}^1$

素因数の和:2989

約数の個数: 16

約数和(自身を含む): 129276000

約数和(自身を除く): 47514022

約数列:

[1, 2, 19, 38, 1259, 1709, 2518, 3418, 23921, 32471, 47842, 64942, 2151631, 4303262, 40880989, 81761978]

約数ペア:

[(1, 81761978), (2, 40880989), (19, 4303262), (38, 2151631), (1259, 64942), (1709, 47842), (2518, 32471), (3418, 23921)]