21476264

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 20103736

約数列:

[1, 2, 4, 8, 43, 86, 149, 172, 298, 344, 419, 596, 838, 1192, 1676, 3352, 6407, 12814, 18017, 25628, 36034, 51256, 62431, 72068, 124862, 144136, 249724, 499448, 2684533, 5369066, 10738132, 21476264]

約数ペア:

[(1, 21476264), (2, 10738132), (4, 5369066), (8, 2684533), (43, 499448), (86, 249724), (149, 144136), (172, 124862), (298, 72068), (344, 62431), (419, 51256), (596, 36034), (838, 25628), (1192, 18017), (1676, 12814), (3352, 6407)]