18970664

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{911}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 37756800

約数和(自身を除く): 18786136

約数列:

[1, 2, 4, 8, 19, 38, 76, 137, 152, 274, 548, 911, 1096, 1822, 2603, 3644, 5206, 7288, 10412, 17309, 20824, 34618, 69236, 124807, 138472, 249614, 499228, 998456, 2371333, 4742666, 9485332, 18970664]

約数ペア:

[(1, 18970664), (2, 9485332), (4, 4742666), (8, 2371333), (19, 998456), (38, 499228), (76, 249614), (137, 138472), (152, 124807), (274, 69236), (548, 34618), (911, 20824), (1096, 17309), (1822, 10412), (2603, 7288), (3644, 5206)]