21016394

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11287}}^1$

素因数の和:11322

約数の個数: 24

約数和(自身を含む): 38604960

約数和(自身を除く): 17588566

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11287, 22574, 79009, 158018, 214453, 428906, 553063, 1106126, 1501171, 3002342, 10508197, 21016394]

約数ペア:

[(1, 21016394), (2, 10508197), (7, 3002342), (14, 1501171), (19, 1106126), (38, 553063), (49, 428906), (98, 214453), (133, 158018), (266, 79009), (931, 22574), (1862, 11287)]