20778513316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{528823}}^1$

素因数の和:528904

約数の個数: 48

約数和(自身を含む): 42644367360

約数和(自身を除く): 21865854044

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 47, 76, 94, 188, 209, 418, 517, 836, 893, 1034, 1786, 2068, 3572, 9823, 19646, 39292, 528823, 1057646, 2115292, 5817053, 10047637, 11634106, 20095274, 23268212, 24854681, 40190548, 49709362, 99418724, 110524007, 221048014, 273401491, 442096028, 472238939, 546802982, 944477878, 1093605964, 1888955756, 5194628329, 10389256658, 20778513316]

約数ペア:

[(1, 20778513316), (2, 10389256658), (4, 5194628329), (11, 1888955756), (19, 1093605964), (22, 944477878), (38, 546802982), (44, 472238939), (47, 442096028), (76, 273401491), (94, 221048014), (188, 110524007), (209, 99418724), (418, 49709362), (517, 40190548), (836, 24854681), (893, 23268212), (1034, 20095274), (1786, 11634106), (2068, 10047637), (3572, 5817053), (9823, 2115292), (19646, 1057646), (39292, 528823)]