19016285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 25754112

約数和(自身を除く): 6737827

約数列:

[1, 5, 17, 23, 71, 85, 115, 137, 355, 391, 685, 1207, 1633, 1955, 2329, 3151, 6035, 8165, 9727, 11645, 15755, 27761, 48635, 53567, 138805, 165359, 223721, 267835, 826795, 1118605, 3803257, 19016285]

約数ペア:

[(1, 19016285), (5, 3803257), (17, 1118605), (23, 826795), (71, 267835), (85, 223721), (115, 165359), (137, 138805), (355, 53567), (391, 48635), (685, 27761), (1207, 15755), (1633, 11645), (1955, 9727), (2329, 8165), (3151, 6035)]