18836144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61961}}^1$

素因数の和:61988

約数の個数: 20

約数和(自身を含む): 38416440

約数和(自身を除く): 19580296

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61961, 123922, 247844, 495688, 991376, 1177259, 2354518, 4709036, 9418072, 18836144]

約数ペア:

[(1, 18836144), (2, 9418072), (4, 4709036), (8, 2354518), (16, 1177259), (19, 991376), (38, 495688), (76, 247844), (152, 123922), (304, 61961)]