3978218

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:661

約数の個数: 16

約数和(自身を含む): 6272640

約数和(自身を除く): 2294422

約数列:

[1, 2, 23, 46, 197, 394, 439, 878, 4531, 9062, 10097, 20194, 86483, 172966, 1989109, 3978218]

約数ペア:

[(1, 3978218), (2, 1989109), (23, 172966), (46, 86483), (197, 20194), (394, 10097), (439, 9062), (878, 4531)]