18869456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{401}}^1$

素因数の和:599

約数の個数: 40

約数和(自身を含む): 39030984

約数和(自身を除く): 20161528

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 173, 272, 346, 401, 692, 802, 1384, 1604, 2768, 2941, 3208, 5882, 6416, 6817, 11764, 13634, 23528, 27268, 47056, 54536, 69373, 109072, 138746, 277492, 554984, 1109968, 1179341, 2358682, 4717364, 9434728, 18869456]

約数ペア:

[(1, 18869456), (2, 9434728), (4, 4717364), (8, 2358682), (16, 1179341), (17, 1109968), (34, 554984), (68, 277492), (136, 138746), (173, 109072), (272, 69373), (346, 54536), (401, 47056), (692, 27268), (802, 23528), (1384, 13634), (1604, 11764), (2768, 6817), (2941, 6416), (3208, 5882)]