19988422

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{1733}}^1$

素因数の和:1887

約数の個数: 16

約数和(自身を含む): 30795840

約数和(自身を除く): 10807418

約数列:

[1, 2, 73, 79, 146, 158, 1733, 3466, 5767, 11534, 126509, 136907, 253018, 273814, 9994211, 19988422]

約数ペア:

[(1, 19988422), (2, 9994211), (73, 273814), (79, 253018), (146, 136907), (158, 126509), (1733, 11534), (3466, 5767)]