19697913

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2285

約数の個数: 24

約数和(自身を含む): 30393792

約数和(自身を除く): 10695879

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2213, 2967, 6639, 8901, 19917, 50899, 95159, 152697, 285477, 458091, 856431, 2188657, 6565971, 19697913]

約数ペア:

[(1, 19697913), (3, 6565971), (9, 2188657), (23, 856431), (43, 458091), (69, 285477), (129, 152697), (207, 95159), (387, 50899), (989, 19917), (2213, 8901), (2967, 6639)]