19577817

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2851}}^1$

素因数の和:2973

約数の個数: 24

約数和(自身を含む): 32626880

約数和(自身を除く): 13049063

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2851, 6867, 8553, 19957, 25659, 59871, 179613, 310759, 932277, 2175313, 2796831, 6525939, 19577817]

約数ペア:

[(1, 19577817), (3, 6525939), (7, 2796831), (9, 2175313), (21, 932277), (63, 310759), (109, 179613), (327, 59871), (763, 25659), (981, 19957), (2289, 8553), (2851, 6867)]