19505668

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1307}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 43069824

約数和(自身を除く): 23564156

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1307, 2132, 2614, 3731, 5228, 7462, 9149, 14924, 16991, 18298, 33982, 36596, 53587, 67964, 107174, 118937, 214348, 237874, 375109, 475748, 696631, 750218, 1393262, 1500436, 2786524, 4876417, 9752834, 19505668]

約数ペア:

[(1, 19505668), (2, 9752834), (4, 4876417), (7, 2786524), (13, 1500436), (14, 1393262), (26, 750218), (28, 696631), (41, 475748), (52, 375109), (82, 237874), (91, 214348), (164, 118937), (182, 107174), (287, 67964), (364, 53587), (533, 36596), (574, 33982), (1066, 18298), (1148, 16991), (1307, 14924), (2132, 9149), (2614, 7462), (3731, 5228)]