18840796

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:670

約数の個数: 36

約数和(自身を含む): 36523872

約数和(自身を除く): 17683076

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 169, 188, 338, 593, 611, 676, 1186, 1222, 2372, 2444, 7709, 7943, 15418, 15886, 27871, 30836, 31772, 55742, 100217, 111484, 200434, 362323, 400868, 724646, 1449292, 4710199, 9420398, 18840796]

約数ペア:

[(1, 18840796), (2, 9420398), (4, 4710199), (13, 1449292), (26, 724646), (47, 400868), (52, 362323), (94, 200434), (169, 111484), (188, 100217), (338, 55742), (593, 31772), (611, 30836), (676, 27871), (1186, 15886), (1222, 15418), (2372, 7943), (2444, 7709)]