18743965

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 4843235

約数列:

[1, 5, 23, 115, 389, 419, 1945, 2095, 8947, 9637, 44735, 48185, 162991, 814955, 3748793, 18743965]

約数ペア:

[(1, 18743965), (5, 3748793), (23, 814955), (115, 162991), (389, 48185), (419, 44735), (1945, 9637), (2095, 8947)]