21004468

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{4211}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 17914412

約数列:

[1, 2, 4, 29, 43, 58, 86, 116, 172, 1247, 2494, 4211, 4988, 8422, 16844, 122119, 181073, 244238, 362146, 488476, 724292, 5251117, 10502234, 21004468]

約数ペア:

[(1, 21004468), (2, 10502234), (4, 5251117), (29, 724292), (43, 488476), (58, 362146), (86, 244238), (116, 181073), (172, 122119), (1247, 16844), (2494, 8422), (4211, 4988)]