20215360521

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{167}}^1\times {\mathrm{337}}^1\times {\mathrm{373}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 29817051264

約数和(自身を除く): 9601690743

約数列:

[1, 3, 9, 107, 167, 321, 337, 373, 501, 963, 1011, 1119, 1503, 3033, 3357, 17869, 36059, 39911, 53607, 56279, 62291, 108177, 119733, 125701, 160821, 168837, 186873, 324531, 359199, 377103, 506511, 560619, 1131309, 6021853, 6665137, 13450007, 18065559, 19995411, 20992067, 40350021, 54196677, 59986233, 62976201, 121050063, 188928603, 2246151169, 6738453507, 20215360521]

約数ペア:

[(1, 20215360521), (3, 6738453507), (9, 2246151169), (107, 188928603), (167, 121050063), (321, 62976201), (337, 59986233), (373, 54196677), (501, 40350021), (963, 20992067), (1011, 19995411), (1119, 18065559), (1503, 13450007), (3033, 6665137), (3357, 6021853), (17869, 1131309), (36059, 560619), (39911, 506511), (53607, 377103), (56279, 359199), (62291, 324531), (108177, 186873), (119733, 168837), (125701, 160821)]