19880696

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{859}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 40867200

約数和(自身を除く): 20986504

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 263, 526, 859, 1052, 1718, 2104, 2893, 3436, 5786, 6872, 9449, 11572, 18898, 23144, 37796, 75592, 225917, 451834, 903668, 1807336, 2485087, 4970174, 9940348, 19880696]

約数ペア:

[(1, 19880696), (2, 9940348), (4, 4970174), (8, 2485087), (11, 1807336), (22, 903668), (44, 451834), (88, 225917), (263, 75592), (526, 37796), (859, 23144), (1052, 18898), (1718, 11572), (2104, 9449), (2893, 6872), (3436, 5786)]