19945716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{647}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 53415936

約数和(自身を除く): 33470220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 367, 647, 734, 1101, 1294, 1468, 1941, 2202, 2569, 2588, 3882, 4404, 4529, 5138, 7707, 7764, 9058, 10276, 13587, 15414, 18116, 27174, 30828, 54348, 237449, 474898, 712347, 949796, 1424694, 1662143, 2849388, 3324286, 4986429, 6648572, 9972858, 19945716]

約数ペア:

[(1, 19945716), (2, 9972858), (3, 6648572), (4, 4986429), (6, 3324286), (7, 2849388), (12, 1662143), (14, 1424694), (21, 949796), (28, 712347), (42, 474898), (84, 237449), (367, 54348), (647, 30828), (734, 27174), (1101, 18116), (1294, 15414), (1468, 13587), (1941, 10276), (2202, 9058), (2569, 7764), (2588, 7707), (3882, 5138), (4404, 4529)]