19518894

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{1697}}^1$

素因数の和:1782

約数の個数: 40

約数和(自身を含む): 44378928

約数和(自身を除く): 24860034

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1697, 1917, 3394, 3834, 5091, 5751, 10182, 11502, 15273, 30546, 45819, 91638, 120487, 137457, 240974, 274914, 361461, 722922, 1084383, 2168766, 3253149, 6506298, 9759447, 19518894]

約数ペア:

[(1, 19518894), (2, 9759447), (3, 6506298), (6, 3253149), (9, 2168766), (18, 1084383), (27, 722922), (54, 361461), (71, 274914), (81, 240974), (142, 137457), (162, 120487), (213, 91638), (426, 45819), (639, 30546), (1278, 15273), (1697, 11502), (1917, 10182), (3394, 5751), (3834, 5091)]