19887208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3373}}^1$

素因数の和:3457

約数の個数: 32

約数和(自身を含む): 41297760

約数和(自身を除く): 21410552

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 134, 268, 536, 737, 1474, 2948, 3373, 5896, 6746, 13492, 26984, 37103, 74206, 148412, 225991, 296824, 451982, 903964, 1807928, 2485901, 4971802, 9943604, 19887208]

約数ペア:

[(1, 19887208), (2, 9943604), (4, 4971802), (8, 2485901), (11, 1807928), (22, 903964), (44, 451982), (67, 296824), (88, 225991), (134, 148412), (268, 74206), (536, 37103), (737, 26984), (1474, 13492), (2948, 6746), (3373, 5896)]