21949522

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 41038272

約数和(自身を除く): 19088750

約数列:

[1, 2, 7, 14, 19, 38, 43, 86, 101, 133, 202, 266, 301, 361, 602, 707, 722, 817, 1414, 1634, 1919, 2527, 3838, 4343, 5054, 5719, 8686, 11438, 13433, 15523, 26866, 30401, 31046, 36461, 60802, 72922, 82517, 108661, 165034, 217322, 255227, 510454, 577619, 1155238, 1567823, 3135646, 10974761, 21949522]

約数ペア:

[(1, 21949522), (2, 10974761), (7, 3135646), (14, 1567823), (19, 1155238), (38, 577619), (43, 510454), (86, 255227), (101, 217322), (133, 165034), (202, 108661), (266, 82517), (301, 72922), (361, 60802), (602, 36461), (707, 31046), (722, 30401), (817, 26866), (1414, 15523), (1634, 13433), (1919, 11438), (2527, 8686), (3838, 5719), (4343, 5054)]