18886568

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 36832320

約数和(自身を除く): 17945752

約数列:

[1, 2, 4, 8, 41, 71, 82, 142, 164, 284, 328, 568, 811, 1622, 2911, 3244, 5822, 6488, 11644, 23288, 33251, 57581, 66502, 115162, 133004, 230324, 266008, 460648, 2360821, 4721642, 9443284, 18886568]

約数ペア:

[(1, 18886568), (2, 9443284), (4, 4721642), (8, 2360821), (41, 460648), (71, 266008), (82, 230324), (142, 133004), (164, 115162), (284, 66502), (328, 57581), (568, 33251), (811, 23288), (1622, 11644), (2911, 6488), (3244, 5822)]