19771888

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{11549}}^1$

素因数の和:11664

約数の個数: 20

約数和(自身を含む): 38669400

約数和(自身を除く): 18897512

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 11549, 23098, 46196, 92392, 184784, 1235743, 2471486, 4942972, 9885944, 19771888]

約数ペア:

[(1, 19771888), (2, 9885944), (4, 4942972), (8, 2471486), (16, 1235743), (107, 184784), (214, 92392), (428, 46196), (856, 23098), (1712, 11549)]