19511492

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 46296768

約数和(自身を除く): 26785276

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 121, 143, 154, 182, 242, 286, 308, 364, 443, 484, 572, 847, 886, 1001, 1573, 1694, 1772, 2002, 3101, 3146, 3388, 4004, 4873, 5759, 6202, 6292, 9746, 11011, 11518, 12404, 19492, 22022, 23036, 34111, 40313, 44044, 53603, 63349, 68222, 80626, 107206, 126698, 136444, 161252, 214412, 253396, 375221, 443443, 696839, 750442, 886886, 1393678, 1500884, 1773772, 2787356, 4877873, 9755746, 19511492]

約数ペア:

[(1, 19511492), (2, 9755746), (4, 4877873), (7, 2787356), (11, 1773772), (13, 1500884), (14, 1393678), (22, 886886), (26, 750442), (28, 696839), (44, 443443), (52, 375221), (77, 253396), (91, 214412), (121, 161252), (143, 136444), (154, 126698), (182, 107206), (242, 80626), (286, 68222), (308, 63349), (364, 53603), (443, 44044), (484, 40313), (572, 34111), (847, 23036), (886, 22022), (1001, 19492), (1573, 12404), (1694, 11518), (1772, 11011), (2002, 9746), (3101, 6292), (3146, 6202), (3388, 5759), (4004, 4873)]