19810238

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23197}}^1$

素因数の和:23267

約数の個数: 16

約数和(自身を含む): 34518624

約数和(自身を除く): 14708386

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 23197, 46394, 162379, 324758, 1415017, 2830034, 9905119, 19810238]

約数ペア:

[(1, 19810238), (2, 9905119), (7, 2830034), (14, 1415017), (61, 324758), (122, 162379), (427, 46394), (854, 23197)]