19504772

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 40806528

約数和(自身を除く): 21301756

約数列:

[1, 2, 4, 7, 14, 28, 37, 67, 74, 134, 148, 259, 268, 281, 469, 518, 562, 938, 1036, 1124, 1876, 1967, 2479, 3934, 4958, 7868, 9916, 10397, 17353, 18827, 20794, 34706, 37654, 41588, 69412, 72779, 75308, 131789, 145558, 263578, 291116, 527156, 696599, 1393198, 2786396, 4876193, 9752386, 19504772]

約数ペア:

[(1, 19504772), (2, 9752386), (4, 4876193), (7, 2786396), (14, 1393198), (28, 696599), (37, 527156), (67, 291116), (74, 263578), (134, 145558), (148, 131789), (259, 75308), (268, 72779), (281, 69412), (469, 41588), (518, 37654), (562, 34706), (938, 20794), (1036, 18827), (1124, 17353), (1876, 10397), (1967, 9916), (2479, 7868), (3934, 4958)]