21340264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{863}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 43856640

約数和(自身を除く): 22516376

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 281, 562, 863, 1124, 1726, 2248, 3091, 3452, 6182, 6904, 9493, 12364, 18986, 24728, 37972, 75944, 242503, 485006, 970012, 1940024, 2667533, 5335066, 10670132, 21340264]

約数ペア:

[(1, 21340264), (2, 10670132), (4, 5335066), (8, 2667533), (11, 1940024), (22, 970012), (44, 485006), (88, 242503), (281, 75944), (562, 37972), (863, 24728), (1124, 18986), (1726, 12364), (2248, 9493), (3091, 6904), (3452, 6182)]