19839902

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:911

約数の個数: 16

約数和(自身を含む): 30336000

約数和(自身を除く): 10496098

約数列:

[1, 2, 79, 158, 199, 398, 631, 1262, 15721, 31442, 49849, 99698, 125569, 251138, 9919951, 19839902]

約数ペア:

[(1, 19839902), (2, 9919951), (79, 251138), (158, 125569), (199, 99698), (398, 49849), (631, 31442), (1262, 15721)]