18861955

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{23431}}^1$

素因数の和:23466

約数の個数: 16

約数和(自身を含む): 26993664

約数和(自身を除く): 8131709

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 23431, 117155, 164017, 538913, 820085, 2694565, 3772391, 18861955]

約数ペア:

[(1, 18861955), (5, 3772391), (7, 2694565), (23, 820085), (35, 538913), (115, 164017), (161, 117155), (805, 23431)]