18913011

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2539}}^1$

素因数の和:2746

約数の個数: 16

約数和(自身を含む): 27310080

約数和(自身を除く): 8397069

約数列:

[1, 3, 13, 39, 191, 573, 2483, 2539, 7449, 7617, 33007, 99021, 484949, 1454847, 6304337, 18913011]

約数ペア:

[(1, 18913011), (3, 6304337), (13, 1454847), (39, 484949), (191, 99021), (573, 33007), (2483, 7617), (2539, 7449)]