19441456

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 38997504

約数和(自身を除く): 19556048

約数列:

[1, 2, 4, 8, 16, 47, 94, 103, 188, 206, 251, 376, 412, 502, 752, 824, 1004, 1648, 2008, 4016, 4841, 9682, 11797, 19364, 23594, 25853, 38728, 47188, 51706, 77456, 94376, 103412, 188752, 206824, 413648, 1215091, 2430182, 4860364, 9720728, 19441456]

約数ペア:

[(1, 19441456), (2, 9720728), (4, 4860364), (8, 2430182), (16, 1215091), (47, 413648), (94, 206824), (103, 188752), (188, 103412), (206, 94376), (251, 77456), (376, 51706), (412, 47188), (502, 38728), (752, 25853), (824, 23594), (1004, 19364), (1648, 11797), (2008, 9682), (4016, 4841)]