18698128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61507}}^1$

素因数の和:61534

約数の個数: 20

約数和(自身を含む): 38134960

約数和(自身を除く): 19436832

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61507, 123014, 246028, 492056, 984112, 1168633, 2337266, 4674532, 9349064, 18698128]

約数ペア:

[(1, 18698128), (2, 9349064), (4, 4674532), (8, 2337266), (16, 1168633), (19, 984112), (38, 492056), (76, 246028), (152, 123014), (304, 61507)]