19891389

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41183}}^1$

素因数の和:41216

約数の個数: 16

約数和(自身を含む): 31629312

約数和(自身を除く): 11737923

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 41183, 123549, 288281, 864843, 947209, 2841627, 6630463, 19891389]

約数ペア:

[(1, 19891389), (3, 6630463), (7, 2841627), (21, 947209), (23, 864843), (69, 288281), (161, 123549), (483, 41183)]