639522078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8199001}}^1$

素因数の和:8199019

約数の個数: 16

約数和(自身を含む): 1377432336

約数和(自身を除く): 737910258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8199001, 16398002, 24597003, 49194006, 106587013, 213174026, 319761039, 639522078]

約数ペア:

[(1, 639522078), (2, 319761039), (3, 213174026), (6, 106587013), (13, 49194006), (26, 24597003), (39, 16398002), (78, 8199001)]