18891970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{82139}}^1$

素因数の和:82169

約数の個数: 16

約数和(自身を含む): 35484480

約数和(自身を除く): 16592510

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 82139, 164278, 410695, 821390, 1889197, 3778394, 9445985, 18891970]

約数ペア:

[(1, 18891970), (2, 9445985), (5, 3778394), (10, 1889197), (23, 821390), (46, 410695), (115, 164278), (230, 82139)]